Math, asked by mandarbandre, 3 months ago

write a formula of a semicircle and herons formula to find its area of a triangle​

Answers

Answered by sanchita449
4

Answer:

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Step-by-step explanation:

: - write a formula of a semicircle ?

As the area of a circle is πr2. So, the area of a semicircle is 1/2(πr2 ), where r is the radius. The value of π is 3.14 or 22/7.

: - herons formula to find its area of a triangle ?

In geometry, Heron's formula (sometimes called Hero's formula), named after Hero of Alexandria, gives the area of a triangle when the length of all three sides are known. Unlike other triangle area formulae, there is no need to calculate angles or other distances in the triangle first.

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Answered by 2008shrishti
2

Answer:

: - write a formula of a semicircle ?

As the area of a circle is πr2. So, the area of a semicircle is 1/2(πr2 ), where r is the radius. The value of π is 3.14 or 22/7.

: - herons formula to find its area of a triangle ?

In geometry, Heron's formula (sometimes called Hero's formula), named after Hero of Alexandria, gives the area of a triangle when the length of all three sides are known. Unlike other triangle area formulae, there is no need to calculate angles or other distances in the triangle first.

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