2
Q:

# Find the area of a square, one of whose diagonals is 3.8 m long.

 A) 4.22 sq.m B) 5.22 sq.m C) 6.22 sq.m D) 7.22 sq.m

Answer:   D) 7.22 sq.m

Explanation:

Area of the square = $12×diagonal2$=  1/2 * 3.8 * 3.8 = 7.22 sq.m

Q:

 A) 3422 B) 3852 C) 2464 D) 3550

Explanation:

3 4273
Q:

What is the measure of an interior angle of a regular polygon of 8 sides?

 A) 140 B) 144 C) 135 D) 150

Explanation:

0 1555
Q:

Find the volume (in cm3) of a right circular cone of diameter 7 cm and height 7 cm.

 A) 69.06 B) 16.43 C) 11.15 D) 89.83

Explanation:

0 2630
Q:

∆PQR is right angled at Q. If m∠P = 60 deg, then find the value of (secR + 1/2).

 A) (2√2+√3)/2 B) (√3+4)/2√3 C) √3+2 D) 5/6

Explanation:

0 1684
Q:

Find the volume (in cm3) of a hemisphere of diameter 7 cm.

 A) 77 B) 63 C) 89.83 D) 54.13

Explanation:

0 1966
Q:

In ΔPQR measure of angle Q is 90 deg. If tanP = 24/7, and PQ = 14cm, then what is the length (in cm) of side QR?

 A) 50 B) 20 C) 26 D) 48

Explanation:

1 197
Q:

Find the surface area (in sq.cm) of a sphere of diameter 14 cm.

 A) 616 B) 4699 C) 8628 D) 6922

Explanation:

2 2546
Q:

If the edge of a cube is increased by 3 cm, the volume will increase by 657 cub.cm. What then is the original length of each edge of the cube?

 A) 9 cm B) 6 cm C) 8 cm D) 7 cm

Answer & Explanation Answer: B) 6 cm

Explanation: