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3 years ago

13

How can you find the area of a semi-circle

2 answers:

quester [9]3 years ago

8 0

In the case of a circle, the formula for area, A, is A = pi * r^2, where r is the circle's radius. Since we know that a semicircle is half of a circle, we can simply divide that equation by two to calculate the area of a semicircle. So, the formula for the area of a semicircle is A = pi * r^2/2

Alina [70]3 years ago

7 0

Answer:

Area of semi-circle is πr²/2.

Step-by-step explanation:

Area of circle is πr² where r is radius of the circle.

Semi-circle is defined as the half circle.

So, the area of the semi-circle is half of the area of circle.

Area of semi-circle=area of circle/2

So , Area of semi-circle =πr²/2 which is the answer.

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MakcuM [25]

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1. Both are corresponding angles, hence they both are equal, so,

$44x + 2 = 45x \\ = > 2 = 45x - 44x \\ = > 2 = x \\ = > x = 2$

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$10x + 6 + 104 = 180 \\ = > 10x + 110 = 180 \\ = > 10x = 180 - 110 \\ = > 10x = 70 \\ = > x = \frac{70}{10} \\ = > x = 7$

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3. They both are in interior corressponding, hence their sum is equal to 180°, so,

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Ans. A) 6

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evablogger [386]

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Step-by-step explanation:

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