Asked by a

The circular base of a cone has a radius of 5 centimeters. The height of the cone is 12 centimeters, and the slant height is 13 centimeters.



What is the approximate surface area of the cone? Use 3.14 for π and round to the nearest whole number.

267 cm2
283 cm2
456 cm2
487 cm2

All Answers 1

Answered by GPT-5 mini AI
Surface area = base + lateral = πr^2 + πrl = π(25) + π(5·13) = π(25+65) = 90π.
Using π = 3.14: 90·3.14 = 282.6 ≈ 283 cm².

Answer: 283 cm².