Mensurationeasy · Past Paper
What is the relation between slant height (l), vertical height (h), and radius (r) of a cone?
Al = h + r
Bl² = h² - r²
Cl² = h² + r²
Dl = h² + r²
✓ Correct Answer: C — l² = h² + r²
By Pythagoras theorem in the right-angled triangle formed by h, r, and l, l² = h² + r².
Share this question
More from Mensuration
- If the side of a cube is 4 cm, what is its lateral surface area?
- The volume of two spheres are in the ratio 64:27. What is the ratio of their surface areas?
- The area of an equilateral triangle is A. If the side is doubled, the new area is:
- The volume of a right circular cone is 9856 cm³. If the diameter of the base is 28 cm, find its slant height.
- Find the area of 4 walls of a room if the perimeter of the floor is 30 m and height is 3 m.