If the length and the width of a rectangle are both tripled, the ratio of the area of the original rectangle to the area of the enlarge rectangle is
1:5
1:7
1:9
9:1
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
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
24 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
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
95 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
54
65
If each of the dimensions of a rectangle is increased 100%, the area is increased:
150%
200%
300%
500%
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
105 cm2
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
The area of a rectangle with width 3 cm and length 8 cm is equal to the area of a triangle with base 6 cm and height of-
5 cm
18 cm
