Mensurationmedium · Past Paper
The volume of a prism with an equilateral triangular base is 40√3 cm³. If the side of the triangle is 4 cm, find the height of the prism.
A10 cm
B5 cm
C8 cm
D4 cm
✓ Correct Answer: A — 10 cm
Base Area = (√3/4)s² = (√3/4)16 = 4√3. Vol = Area × h => 40√3 = 4√3 × h => h = 10 cm.
Share this question
More from Mensuration
- What is the total surface area of a cone of diameter 14 cm and slant height 13 cm?
- A road roller is cylindrical in shape. If its diameter is 1 m and length 1.4 m, what is the area it covers in 500 revolutions?
- How many bricks each of size 25cm x 10cm x 8cm will be required to build a wall 5m long, 3m high and 16cm thick?
- Find the lateral surface area of a cuboid with dimensions 10 cm x 8 cm x 5 cm.
- The area of the base of a cylinder is 154 sq. cm and height is 5 cm. Find the volume.