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Yuki888 [10]
3 years ago
7

please help :( please help :( please help :( please help :( please help :( please help :( please help :( please help :(​

Mathematics
1 answer:
Virty [35]3 years ago
8 0

Answer:

(1) 23.55mm³

(2) 340.17in³

Step-by-step explanation:

Volume of a cone is: V=\frac{1}{3} \pi r^2h

'r' - radius

'h' - height

<h3>Cone 1:</h3>

The height of Cone 1 is 10 mm. The Diameter of Cone 1 is 3mm.

Radius is half the Diameter.

3/2=1.5

The radius is 1.5 mm.

\text {Using 3.14 as pi: }\\V=(1/3)3.14*1.5^2*10\\V=(1/3)3.14*2.25*10\\V=(1/3)70.65\\\boxed{V=23.55}

The volume of Cone 1 should be about 23.55mm³.

<h3>Cone 2:</h3>

The height of Cone 2 is 13 in. The Radius of Cone 2 is 5 in.

Using 3.14 as pi:

V=(1/3)3.14*5^2*13\\V=(1/3)3.14*25*13\\V=(1/3)1020.5\\\boxed {V=340.166666667}

340.166666667 ≈ 340.17

The volume of Cone 2 should be about 340.17in³.

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