878
Q:

# If each side of a square is increased by 25%, find the percentage change in its area?

 A) 65.25 B) 56.25 C) 65 D) 56

Explanation:

let each side of the square be a , then area = $a2$

As given that The side is increased by 25%, then

New side = 125a/100 = 5a/4

New area = $5a42$

Increased area= $25a216-a2$

Increase %=$9a2/16a2*100$  % = 56.25%

Q:

Five angles of a hexagon measure 116 deg each. What is the measure of the remaining angle?

 A) 152 deg B) 116 deg C) 140 deg D) 126 deg

Explanation:

0 22
Q:

A right-angled triangle ABC is right-angled at B, and tan A = 4/3. If AC = 25 cm, the length of BC is

 A) 33.3 cm B) 24 cm C) 20 cm D) 18.75 cm

Explanation:

0 22
Q:

The circumference of a circle is 110 cm. Find its radius (in cm).

 A) 35 B) 19.5 C) 17.5 D) 39

Explanation:

0 29
Q:

The area of a square is 30.25 cm². Find its perimeter (in cm).

 A) 44 B) 23 C) 22 D) 46

Explanation:

0 22
Q:

If the angles of a triangle are in the ratio of 2 : 5 : 8, then find the value of the largest angle.

 A) 36 deg B) 96 deg C) 84 deg D) 60 deg

Explanation:

0 51
Q:

If two complimentary angles are in the ratio of 11 : 7, find the smaller angle.

 A) 35 deg B) 55 deg C) 45 deg D) 25 deg

Explanation:

0 59
Q:

Find the length of one side of a rhombus whose area is 24 sq.cm and the sum of the lengths of its diagonals is 14 cm.

 A) 3 cm B) 6 cm C) 4 cm D) 5 cm

Explanation:

1 78
Q:

The volume of a cube is 274.625 cm³. Find its side (in cm).

 A) 7.5 B) 6.5 C) 5.5 D) 3.5