Mensurationeasy · Past Paper
Find the slant height of a cone if the curved surface area is 188.4 sq. cm and the radius is 6 cm. (Use π = 3.14)
A10 cm
B8 cm
C12 cm
D7 cm
✓ Correct Answer: A — 10 cm
πrl = 188.4. 3.14 * 6 * l = 18.84 * l = 188.4. l = 10 cm.
Share this question
More from Mensuration
- If the side of a cube is increased by 50%, the surface area increases by:
- A hemispherical bowl has a radius of 7 cm. Find its inner curved surface area.
- A solid cone of height 24 cm and radius of base 6 cm is melted and reshaped into a sphere. Find the radius of the sphere.
- If the radius of a circle is 7 cm, what is its area? (Take pi = 22/7)
- Find the total surface area of a solid hemisphere of diameter 14 cm.