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aleksandr82 [10.1K]
3 years ago
13

The circumference of a circle is 176m.find its diameter​

Mathematics
1 answer:
andreev551 [17]3 years ago
6 0
<h3><u>Given</u>:-</h3>

Circumference of a circle = 176 m

<h3><u>To be calculated:- </u></h3>

Calculate the diameter.

<h3><u>Formula used:- </u></h3>

Circumference of circle = 2πr

<h3><u>Solution:-</u></h3>

We know that,

Circumference of circle = 2πr

=> 176 = 2 × 22/7 × r

=> 176 × 7 = 44 × r

=> 1232/44 = r

=> r = 28 m

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

Consider the below figure attached with this question.

According to Pythagoras Theorem:

base^2+perpendicular^2=hypotenuse^2

Use Pythagoras in triangle HKL

LH^2+KH^2=LK^2

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Taking square root on both sides.

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Use Pythagoras theorem in ΔKLI,

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Use Pythagoras theorem in ΔHKI,

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(KI)^2=x^2+81...(2)

From (1) and (2) we get

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Hence, the measure of HI is 6.75 units.

Substitute x=6.75 in equation (2).

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Taking square root on both sides.

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