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Grace [21]
3 years ago
14

What is the circumternence

Mathematics
1 answer:
AfilCa [17]3 years ago
4 0
Circumference of a circle is the distance around the circle. This can be found by using the equation below

2*pi*radius

Our diameter, as shown, is 9cm. Since radius is half of the diameter, our radius is 4.5cm.

Therefore, our circumference is...

2 * pi * 4.5 = 9pi cm total
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What is the measure of EAB in circle F?<br> 72°<br> 92°<br> 148°<br> 200°
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We have been given a diagram. We are asked find the measure of arc EAB.

First of all, we will find the measure of arcs ED and CB using our given information.

We know that measure of an inscribed angle is half the measure of intercepted arc.

We can see that angle EBC is inscribed angle of arc EDC, so measure of arc EDC will be twice the measure of angle EBC.

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Similarly, we will find the measure of arc DCB.

\widehat{DCB}=2\times m\angle DEB

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