9th grade math worksheet3

In this 9th grade math worksheet3, you can find 10 problems on math which are in the level of 9 th grade

1.Simplify √20 - √225 + √80 

(A) 6√5 - 15
(B) 3√15 - 12
(A) 5√5-10



2.The perimeter of the rhombus is 20 cm. One of the diagonals is of length 8 cm. Find the length of the other diagonal.

(A) 3 cm
(B) 4 cm
(C) 6 cm



3.Four cows are tied to the four corners of a square plot of side measuring 14 m/ So that each can reach just two of the other cows. These cows eat the grass inside the plot within their range.Find what area of the plot is left grazed.Take π = 22/7

(A) 42 m 2
(B) 52 m 2
(C) 12 m 2



4. Solve log ₁₀ (2x + 50) = 3   9th grade math worksheet3

(A) 475
(B) 577
(C) 850



5.A set has only one element is called _____________________ set

(A) Empty set
(B) Singleton set
(C) null set



6.Which of the following statement represents this Venn diagram?

(A) A - B
(B) B - A
(C) A'



7.If (x + p) (x + q) = x ² - 5 x - 300, find the value of p² + q²

(A) 650
(B) 615
(C) 625



8.the point of concurrence of the angle bisector of a triangle is called the _____________ of the triangle.  9th grade worksheet3

(A) Orthocenter
(B) Incenter
(C) None of these



9.The angles are supplementary and larger angle is twice the smaller angle.Find the angles.

(A) 60°, 120°
(B) 70°, 110°
(C) 80°, 100°



10. Find the distance between the points A (-15,-3) and B (7,1)

(A) √7
(B) 12 √3
(C) 10 √5


Answers:

1.    6√5 - 15  

2.    6 cm

3.    42 m² 

4.    475

5.    Singleton set 

6.    B - A

7.    625 

8.    in center 

9.    60°, 120°

10.   10√5 

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