Mensurationmedium · Past Paper
Find the slant surface area of a cone with radius 7 cm and height 24 cm.
A528 cm²
B550 cm²
C616 cm²
D700 cm²
✓ Correct Answer: B — 550 cm²
l = sqrt(7² + 24²) = 25. CSA = πrl = (22/7) * 7 * 25 = 550 cm².
Share this question
More from Mensuration
- If the circumference and area of a circle are numerically equal, the radius is:
- A rectangular tank 5 m long, 4 m wide, and 3 m deep is half full of water. What is the volume of water?
- The radius and height of a cone are in the ratio 3:4. If its curved surface area is 188.4 cm², find its radius (Take π = 3.14).
- Find the area of a square field whose side length is 12 meters.
- What is the area of a rectangle whose length is 15 cm and breadth is 10 cm?