2 years ago

My chosen word is quadratic form

Mathematics

1 answer:

sweet [91]2 years ago

6 0

Answer:

mine is creed for

Step-by-step explanation:

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6. a semicircle has as its diameter the hypotenuse of a right triangle shown below. determine the area of the semicircle to the

jeyben [28]

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$A = 137.3cm^2$

Step-by-step explanation:

Given

See attachment

Required

The area of the semicircle

First, we calculate the hypotenuse (h) of the triangle

Considering only the triangle, we have:

$\cos(68) = \frac{7}{h}$ --- cosine formula

Make h the subject

$h = \frac{7}{\cos(68)}$

$h = \frac{7}{0.3746}$

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The area of the semicircle is then calculated as:

$A = \frac{\pi h^2}{8}$

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