4 years ago

Plz help :((((((((((((

Mathematics

1 answer:

sineoko [7]4 years ago

8 0

Answer:

42 pi

Step-by-step explanation:

The area of the base is the area of a circle

A = pi r^2

A = pi (3)^2 = 9pi in^2

The circumference is

C = 2*pi*r

C = 2*pi*3 = 6pi

The lateral surface area is

lsa = C * h = 6pi *4 = 24 pi

SA = 2 bases + lsa

2 * 9pi + 24 pi

18pi+24 pi

42 pi

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