Question

Identify the lateral area and surface area of a right cone with radius 7 cm and slant height 15 cm.

Answer 1

Answer:

lateral area is  329.7 and the surface area is 483.56

Step-by-step explanation:

Lateral area = $\pi (7)(15) = 105\pi = 329.7$

Surface area = lateral area + base area

Base area= $\pi r^{2}$ = $\pi (7)^{2}$ = $49\pi$

Surface area = 105$\pi + 49\pi = 154\pi = 483.56$