MATH PRACTICE PROBLEMS FOR 9th GRADE

Problem 1 :

Evaluate the following

Solution

Problem 2 :

Put π and 22/7 in order relation.

 (A) π > 22/7         (B) π < 22/7          (C) π = 22/7

Solution

Problem 3 :

The value of √20-√225+√80

Solution

Problem 4 :

A wall in the form of a rectangle has base 15 m and height 10 m. If the cost of painting the wall is $16 per square meter, find the cost for painting the entire wall.

Solution

Problem 6 :

Find the base of a parallelogram if its area is 40 cm² and altitude is 15 cm.

Solution

Problem 7 :

If the lengths of the sides of a triangle are 11 cm, 60 cm and 61 cm, find the area and perimeter of the  triangle.

Solution

Problem 8 :

A wire of length 264 cm is cut into two equal portions. One portion is bent in the form of a circle and the other in the form of an equilateral triangle. Find the ratio of radius and side length of triangle.

Solution

Problem 9 :

Pablo buys popsicles for his friends. The store sells single popsicles for $1 each, 3 popsicle boxes for $2 each, and 5 popsicle boxes for $3 . What is the greatest number of popsicles that Pablo can buy with $8 ?

Solution

Problem 10 :

Find the perimeter of the sector whose area is 924 square cm and the central angle is 240.

Solution

Apart from the stuff given above, if you need any other stuff in math, please use our google custom search here.

1.  25/33

2.  π = 22/7

3.  4√5

4.  2400

5.  7500

6.  8/3 cm

7.  330, 132

8.  21 : 44

9.  13

10. 130 cm

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