Area of Triangle Worksheets





In this page area of triangle worksheets we are going to see some practice questions. In the lower classes we have studied about how to find the area for any triangle. We will use the formula is (1/2 ) x base x height if the base and perpendicular height is given.But here we are going to see the another method that is if we are given the three vertices of a triangle we can find the area by using this formula. Here you can practice problems in the form of quiz. You can verify the solution by clicking the link.

To find area of any triangle with three vertices first we have to draw the picture by using the given points. All areas are positive. So area of triangle must be positive so the points (x₁,y₁) (x₂,y₂) and (x₃,y₃) taken in order should be in the counter clockwise direction. If the given points are taken in the order are in clockwise the the area will be in negative number.

clockwise and anti clockwise direction:



Area of the triangle = 12 {x1(y2-y3) + x2(y3-y1) + x3(y1-y2)}

Question 1 :  area of triangle worksheets

Find the area of triangle whose vertices are (6,7) (2,-9) and (-4,1).



(A) 62 square units
(B) 68 square units
(C) 74 square units




Question 2 :

Find the area of triangle whose vertices are (3,4) (2,-1) and (4,-6).



(A) 7.5 square units
(B) 3.8 square units
(C) 4.7 square units




Question 3 :      area of triangle worksheets

Find the area of triangle whose vertices are (5,6) (2,4) and (1,-3).



(A) 2.7 square units
(B) 8.8 square units
(C) 9.5 square units




Question 4 :

Find the area of triangle whose vertices are (1,3) (-7,6) and (5,-1).



(A) 10 square units
(B) 8 square units
(C) 18 square units




Question 5 :

Find the area of triangle whose vertices are (1,1) (3,4) and (5,-2).



(A) 7 square units
(B) 9 square units
(C) 13 square units




Question 6 :

Find the area of triangle whose vertices are (-3,-9) (-1,6) and (3,9).



(A) 59 square units
(B) 69 square units
(C) 93 square units




Question 7 :

Find the area of triangle whose vertices are (-3,-9) (3,9) and (5,-8).



(A) 57 square units
(B) 69 square units
(C) 37 square units




Question 8 :

Find the area of triangle whose vertices are (4,5) (4,2) and (-2,2).



(A) 9 square units
(B) 7 square units
(C) 3 square units




Question 9 :

Find the area of triangle whose vertices are (3,1) (2,2) and (2,0).



(A) 1 square units
(B) 7 square units
(C) 3 square units




Question 10 :  area of triangle worksheets

Find the area of triangle whose vertices are (3,1) (0,4) and (-3,1).



(A) 9 square units
(B) 7 square units
(C) 3 square units



Related Topics

HTML Comment Box is loading comments...