Find the circumference of the circle 8.5cm

Mathematics

1 answer:

Vanyuwa [196]3 years ago

8 0

Answer: The circumference of the circle is 53.38 cm.

Step-by-step explanation:

Circumference of the circle is the distance around the circle.

Formula used:

$C = 2\pi r$

Where,

C is circumference of circle

r is radius of circle

Given:

Radius of circle = 8.5 cm

Now putting all the given values in the above formula, we get:

$C = 2\pi r\\C=2\times 3.14\times 8.5cm\\C=53.38cm$

Therefore, the circumference of the circle is 53.38 cm.

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Please note that dilation does not affect angles. Thus, if an image is dilated the angle remains the same and does not change.

Therefore, even if $\Delta ABC$ is dilated to $\Delta JKL$ by a factor of 1.5 (or by any factor for that matter), the linear dimensions of the original triangle $\Delta ABC$ will either get stretched or get shrunk by a factor of 1.5 but the angles of the original triangle will not be affected in any case.