PLEASE HELP I DONT UNDERSTAND AND NOBODY WILL HELP ME

Mathematics

1 answer:

Dima020 [189]3 years ago

4 0

Answer:

radius=3

Step-by-step explanation:

volumes of a cone = 1/3πr²h

12π = 1/3× π × r² × 4

37.7 = 12.6r²/3

cross multiply

37.7×3=12.6r²

113.1=12.6r²

make r² subject of the formula

r²=113.1÷12.6

r²=8.976

r=√8.976

r=2.996

r=3.0 (to the nearest tenth)

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