3 years ago

What is the angle for the following numbers?

Mathematics

1 answer:

liberstina [14]3 years ago

3 0

Answer:

nooooooooooooooooooooooo se xd

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Answer with explanation.please.

Free_Kalibri [48]

The radius of the base is 10 cm.

Solution:

Height of a cone = 15 cm

Volume of the cone = 1570 cm³

To find the radius of the base of the cone:

Volume of the cone = $\frac{1}{3}\pi r^2 h$

$$\Rightarrow \frac{1}{3}\pi r^2 h=1570$

$$\Rightarrow \frac{1}{3}\times\ 3.14\times r^2 \times 15=1570$

$$\Rightarrow\ 3.14\times r^2 \times 5=1570$

$$\Rightarrow\ 15.7\times r^2 =1570$

Divide by 15.7 on both side of the equation, we get

$$\Rightarrow r^2 =100$

Taking square root on both sides of the equation, we get

⇒ r = 10

Hence the radius of the base is 10 cm.

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Convert to degree measure 3π/7

ivanzaharov [21]

To convert radians to degrees you multiply the radians by (180/pi)

(3pi/7)(180/pi)= 77.14 degrees

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3 years ago