If the radius of a circle is decreased by 10% by what per cent is its area decreased?
15
19
42
89
If each of the dimensions of a rectangle is increased 100%, the area is increased:
150%
200%
300%
500%
The radius of a circle that has a circumference equal to the perimeter of a hexagon whose sides are each 22 cm, long is closest in length to which of the following?
15 cm
17 cm
21 cm
32 cm
On the xy-plane, a circle has centre (2-1) and the point (-3,3) lies along the circle's circumference. What is the square-unit area of the circle?
24
39
41
56
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
54
65
A cube has an edge that is 4 cm long. If the edge is increased by 25%, then the volume is increased by approximatley-
42%
64%
81%
95%
A figure is given belowradius OA=3 cm. Calculate the area of the shaped region.
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
A liquid that fills a rectangular container whose dimensions are 2 cm x 10 cm x 20 cm is poured into a cylindrical container whose base radius is 5 cm. What height (in cm) will the surface of the liquid reach in the cylindrical container?
32
16
The length of a rectangle with area 12 cm2 is three times the rectangle's width. What is the perimeter of the rectangle?
8 cm
11 cm
16 cm
