A closed rectangular box with a square base is 5 cm in height. If the volume of the box is 45 cubic cm, what is the box's surface area in square cm?
54
72
78
92
If the area of a square of side x cm is 5 cm2, what is the area of a square of side 3x cm?
25 cm2
45 cm2
95 cm2
105 cm2
If the radius of a circle is decreased by 10% by what per cent is its area decreased?
15
19
42
89
A piece of wire is shaped to enclose a square, whose area is 121 square cm. It is then reshaped to enclose a rectangle whose length is 13 cm. The area of the rectangle, (in square cm) is-
81 cm2
117 cm2
178 cm2
Two cardboard boxes have equal volume. The dimensions of one box are 6 cm x 8 cm x 10 cm. If the length of the other box is 4 cm and the width is 6 cm. What is the height (in cm) of the second box?
20
30
65
If cylinder A has a height twice that of cylinder B and a radius half that of cylinder B, what is the ratio between the volume of cylinder A and the volume of cylinder B?
1:6
2:1
1:2
4:1
Right circular cylinder P has a radius of 3 cm and a height of 4 cm. If the volume of P is equal to the volume of right circular cylinder Q, which has a radius of 2 cm, what is the height of Q?
7 cm
9 cm
17 cm
24 cm
What is the area of the rectangle in sq. units in the figure?
8
12
14
21
Three congruent squares are arranged in a row., If the perimeter of ABCD is 80 cm, the area of ABCD is-
280 cm2
312 cm2
540 cm2
300 cm2
The hypotenuse of a right triangle is 13 cm and one side is 12 cm. Then the length of the other side of the triangle is-
3 cm
5 cm
40 cm
