**Vertices of righttriangle worksheet :**

In this page vertices of righttriangle worksheet we are going to see some question to verify how to examine whether the given points are the vertices of right triangle.

(1) Examine whether the given points A (-3,-4) and B (2,6) and C(-6,10) forms a right triangle.

(2) Examine whether the given points P (7,1) and Q (-4,-1) and R (4,5) forms a right triangle.

(3) Examine whether the given points P (4,4) and Q (3,5) and R (-1,-1) forms a right triangle.

(4) Examine whether the given points A (2,0) and B (-2,3) and C (-2,-5) forms a right triangle.

(5) Examine whether the given points A (0,0) and B (5,0) and C (0,6) forms a right triangle.

(6) Examine whether the given points P (4,4) and Q (3,5) and R (-1,-1) forms a right triangle.

**Question 1 :**

Examine whether the given points A (-3,-4) and B (2,6) and C(-6,10) forms a right triangle.

**Solution :**

Distance Between Two Points (x ₁, y₁) and (x₂ , y₂)

**√(x₂ - x₁) ² + (y₂ - y₁) ²**

The three points are A (-3,-4) and B (2,6) and C(-6,10)

Distance between the points A and B

= **√(x₂ - x₁)² + (y₂ - y₁)²**

Here **x₁ = -3, y₁ = -4, x₂ = 2 and y₂ = 6**

**= ** √(2-(-3))² + (6-(-4))²

= √(2+3)² + (6+4)²

= √5² + 10²

= √25 + 100

= √125 units

Distance between the points B and C

= **√(x₂ - x₁)² + (y₂ - y₁)²**

Here **x₁ = 2, y₁ = 6, x₂ = -6 and y₂ = 10**

**= ** √(-6-2)² + (10-6)²

= √(-8)² + (4)²

= ** **√64 + 16

= √80 units

Distance between the points C and A

= **√(x₂ - x₁)² + (y₂ - y₁)²**

Here **x₁ = -6, y₁ = 10, x₂ = -3 and y₂ = -4**

**= ** √(-3-(-6))² + (-4-10)²

= √(-3+6)² + (-14)²

= ** **√3² + (-14)²

= √9 + 196

= √205 units

AB = √125 units

BC = √80 units

CA = √205 units

(CA)² = (AB)² + (BC)²

(√205)² = (√125)² + (√80)²

205 = 125 + 80

205 = 205

Therefore A,B and C forms a right triangle.

Let us see the solution of next question on "vertices of righttriangle worksheet".

**Question 2 :**

Examine whether the given points P (7,1) and Q (-4,-1) and R (4,5) forms a right triangle.

**Solution :**

Distance Between Two Points (x ₁, y₁) and (x₂ , y₂)

**√(x₂ - x₁)² + (y₂ - y₁)²**

The three points are P (7,1) and Q (-4,-1) and R (4,5)

Distance between the points P and Q

= **√(x₂ - x₁)² + (y₂ - y₁)²**

Here **x₁ = 7, y₁ = 1, x₂ = -4 and y₂ = -1**

**= **√(-4-7)² + (-1-1)²

= √(-11)² + (-2)²

= ** **√121 + 4

= √125 units

Distance between the points Q and R

= **√(x₂ - x₁)² + (y₂ - y₁)²**

Here **x₁ = -4, y₁ = -1, x₂ = 4 and y₂ = 5**

**= **√(4-(-4))² + (5-(-1))²

= √(4+4)² + (5+1)²

= ** **√8² + 6²

= ** **√64 + 36

= √100 units

Distance between the points R and P

= **√(x₂ - x₁)² + (y₂ - y₁)²**

Here **x₁ = 4, y₁ = 5, x₂ = 7 and y₂ = 1**

**= **√(7-4)² + (1-5)²

= √(3)² + (-4)²

= √9 + 16

= √25 units

PQ = √125 units

QR = √100 units

RP = √25 units

(PQ)² = (QR)² + (RP)²

(√125)² = (√100)² + (√25)²

125 = 100 + 25

125 = 125

Hence, the given points P,Q and R forms a right triangle.

Let us see the solution of next question on "vertices of righttriangle worksheet".

**Question 3 :**

Examine whether the given points P (4,4) and Q (3,5) and R (-1,-1) forms a right triangle.

**Solution :**

Distance Between Two Points (x ₁, y₁) and (x₂ , y₂)

**√(x₂ - x₁)² + (y₂ - y₁)²**

The three points are P (4,4) and Q (3,5) and R (-1,-1)

Distance between the points P and Q

= **√(x₂ - x₁)² + (y₂ - y₁)²**

Here **x₁ = 4, y₁ = 4, x₂ = 3 and y₂ = 5**

**= ** √(3-4)² + (5-4)²

= √(-1)² + (1)²

= √1 + 1

= √2 units

Distance between the points Q and R

= **√(x₂ - x₁)² + (y₂ - y₁)²**

Here **x₁ = 3, y₁ = 5, x₂ = -1 and y₂ = -1**

**= ** √(-1-3)² + (-1-5)²

= √(-4)² + (-6)²

= ** **√16 + 36

= √52 units

Distance between the points R and P

= **√(x₂ - x₁)² + (y₂ - y₁)²**

Here **x₁ = -1, y₁ = -1, x₂ = 4 and y₂ = 4**

**= **√(4-(-1))² + (4-(-1))²

= ** **√(4+1)² + (4+1)²

= √5² + (5)²

= √25 + 25

= √50 units

PQ = √2 units

QR = √52 units

RP = √50 units

(QR)² = (PQ)² + (RP)²

(√52)² = (√2)² + (√50)²

52 = 2 + 50

52 = 52

Hence, the given points P,Q and R forms a right triangle.

Let us see the solution of next question on "vertices of righttriangle worksheet".

**Question 4 :**

Examine whether the given points A (2,0) and B (-2,3) and C (-2,-5) forms a right triangle.

**Solution :**

Distance Between Two Points (x ₁, y₁) and (x₂ , y₂)

**√(x₂ - x₁)² + (y₂ - y₁)²**

The three points are A (2,0) and B (-2,3) and C (-2,-5)

Distance between the points A and B

= **√(x₂ - x₁)² + (y₂ - y₁)²**

Here **x₁ = 2, y₁ = 0, x₂ = -2 and y₂ = 3**

**= **√(-2-2))² + (3-0)²

= ** **√(-4)² + (3)²

= ** **√16 + 9

= √25 units

Distance between the points B and C

= **√(x₂ - x₁)² + (y₂ - y₁)²**

Here **x₁ = -2, y₁ = 3, x₂ = -2 and y₂ = -5**

**= **√(-2-(-2))² + (-5-3)²

= √(-2+2)² + (-8)²

= ** **√0² + 64

= √64 units

Distance between the points C and A

= **√(x₂ - x₁)² + (y₂ - y₁)²**

Here **x₁ = -2, y₁ = -5, x₂ = 2 and y₂ = 0**

**= **√(2-(-2))² + (0-(-5))²

= √(2+2)² + (0+5)²

= ** **√4² + (5)²

= √16 + 25

= √41 units

AB = √25 units

BC = √64 units

CA = √41 units

(BC)² = (AB)² + (CA)²

(√64)² = (√25)² + (√41)²

64 = 25 + 41

64 ≠ 66

Hence, the given points A,B and C will not form a right triangle.

Let us see the solution of next question on "vertices of righttriangle worksheet".

**Question 5 :**

Examine whether the given points A (0,0) and B (5,0) and C (0,6) forms a right triangle.

**Solution :**

To show that the given points forms a right triangle we need to find the distance between three points. The sum of squares of two sides is equal to the square of remaining side.

Distance Between Two Points (x ₁, y₁) and (x₂ , y₂)

**√(x₂ - x₁)² + (y₂ - y₁)²**

The three points are A (0,0) and B (5,0) and C (0,6)

Distance between the points A and B

= **√(x₂ - x₁)² + (y₂ - y₁)²**

Here **x₁ = 0, y₁ = 0, x₂ = 5 and y₂ = 0**

**= ** √(5-0)² + (0-0)²

= √(5)² + (0)²

= ** **√5² + 0²

= √25 + 0

= √25 units

Distance between the points B and C

= **√(x₂ - x₁)² + (y₂ - y₁)²**

Here **x₁ = 5, y₁ = 0, x₂ = 0 and y₂ = 6**

**= ** √(0-5)² + (6-0)²

= √(-5)² + (6)²

= ** **√25 + 36

= √61 units

Distance between the points C and A

= **√(x₂ - x₁)² + (y₂ - y₁)²**

Here **x₁ = 0, y₁ = 6, x₂ = 0 and y₂ = 0**

**= ** √(0-0)² + (0-6)²

= √(0)² + (-6)²

= ** **√0 + 36

= √36 units

AB = √25 units

BC = √61 units

CA = √36 units

(BC)² = (AB)² + (CA)²

(√61)² = (√25)² + (√36)²

61 = 25 + 36

61 = 61

Hence, the given points A,B and C forms a right triangle.

Let us see the solution of next question on "vertices of righttriangle worksheet".

**Question 6 :**

Examine whether the given points P (4,4) and Q (3,5) and R (-1,-1) forms a right triangle.

**Solution :**

To show that the given points forms a right triangle we need to find the distance between three points. The sum of squares of two sides is equal to the square of remaining side.

Distance Between Two Points (x ₁, y₁) and (x₂ , y₂)

**√(x₂ - x₁)² + (y₂ - y₁)²**

The three points are P (4,4) and Q (3,5) and R (-1,-1)

Distance between the points P and Q

= **√(x₂ - x₁)² + (y₂ - y₁)²**

Here **x₁ = 4, y₁ = 4, x₂ = 3 and y₂ = 5**

**= ** √(3-4)² + (5-4)²

= √(-1)² + (1)²

= ** **√1 + 1

= √2 units

Distance between the points Q and R

= **√(x₂ - x₁)² + (y₂ - y₁)²**

Here **x₁ = 3, y₁ = 5, x₂ = -1 and y₂ = -1**

**= ** √(-1-3)² + (-1-5)²

= √(-4)² + (-6)²

= ** **√16 + 36

= √52 units

Distance between the points R and P

= **√(x₂ - x₁)² + (y₂ - y₁)²**

Here **x₁ = -1, y₁ = -1, x₂ = 4 and y₂ = 4**

**= ** √(4-(-1))² + (4-(-1))²

= √(4+1)² + (4+1)²

= ** **√5² + (5)²

= √25 + 25

= √50 units

PQ = √2 units

QR = √52 units

RP = √50 units

(QR)² = (PQ)² + (RP)²

(√52)² = (√2)² + (√50)²

52 = 2 + 50

52 = 52

Hence, the given points P,Q and R forms a right triangle.

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