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3 years ago

The answer to number 7

Mathematics

1 answer:

slava [35]3 years ago

5 0

The length of the rectangle in #7 is 18 ft
I cannot see which region is shaded so I will solve for both:
1.
the radius of one circle is 3:
A= $\pi$ $r^{2}$
A=(3.14)(9)
A=(28.26)
The area of the three circles is 84.78 feet squared

Area of rectangle is 108 feet squared (16*8)

108-84.78=23.22

The area of the shape around the circles is 23.22 feet squared

2:
The area of 1 circle is 28.26
The area of 3 circles is 84.78 feet squared
The area of the circles in the rectangle is 84.78 feet squared.

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Step-by-step explanation:

Given:

A company makes a cone-shaped container with a height of 15 in.

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So, we find the radius first by using formula:

Let the radius be $r.$

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Now, to get the volume of the cone-shaped container we put formula:

$Volume=\pi r^2\frac{h}{3}$

$Volume=3.14\times 5^2\times \frac{15}{3} \\\\Volume=3.14\times 25\times 5\\\\Volume=392.50\ in^3.$

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