1. The sides of a triangle are 16 cm, 12 cm and 20 cm. Find the area.

64 cm2

112 cm2

96 cm2

81 cm2

2. What is the height of a cylinder that has the same volume and radius as a sphere of diameter 12 cm?

7 cm

10 cm

9 cm

8 cm

3. 2 cosec2 23° cot67° – sin2 23°- sin2 67° – cot2 67° is equal to

1

sec2 23°

tan2 23°

0

4. The base of a right pyramid is an equilateral triangle of side 10 √3   cm. If the total surface area of the pyramid is 270 √3 sq. cm, its height is

12 √3 cm

10 cm

10 √3 cm

12 cm

5. The volume of a cylinder and a cone are in the ratio 3 : 1. Find their diameters and then compare them when their heights are equal.

Diameter of cylinder = 2 times of diameter of cone

Diameter of cylinder = Diameter of cone

Diameter of cylinder > Diameter of cone

Diameter of cylinder < Diameter of cone

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