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Vikentia [17]
3 years ago
8

Type the correct answer in the box. Assume that pi=3.14 and round to the nearest hundredth.

Mathematics
2 answers:
Virty [35]3 years ago
7 0
<h2>Answer:</h2>

The area of shape is: 48.38 square centimeters

<h2>Step-by-step explanation:</h2>

The area of the shape is the area of the square minus the sum of the area of four half semicircles.

We know that four half semicircles will be equal to one circle.

Hence, the area of shape is:

Area of square-Area of circle.

We know that the area of a square with side length s is calculated by:

\text{Area\ of\ square}=s^2

Also, the area of a circle with radius r is calculated by using the formula:

\text{Area\ of\ circle}\pi r^2

Here the side length of the square i.e. s=15 cm.

and the radius of the circle i.e. r=15/2 cm

Hence,

\text{Area\ of\ square}=(15)^2

i.e.

\text{Area\ of\ square}=225\ cm^2

and

\text{Area\ of\ circle}=3.14\times (\dfrac{15}{2})^2

i.e.

\text{Area\ of\ circle}=176.625\ cm^2

Hence, The area of shape is:

\text{Area\ of\ shape}=225-176.625

i.e.

\text{Area\ of\ shape}=48.375\ cm^2

ikadub [295]3 years ago
4 0
White area = \[\frac{15^2\pi}{4}\] Shaded area = \[15^2-\frac{15^2\pi}{4}\]
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