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3 years ago

15

Point C is the center of the circle. What is the measure of angle ACB if arc ADB measures 250 degrees?

1 answer:

NeX [460]3 years ago

4 0

Around the outside of a circle measures 360°. If arc ADB measures 250°, then arc AB measures 360-250 which is 110°. Because point C is the center of the circle, then angle ACB is a central angle. By definition of an arc intercepted by an angle, they are the exact same measure in degrees. So if arc AB = 110, then the measure of the angle ACB also measures 110.

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Step-by-step explanation:

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3 years ago

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3 years ago

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zubka84 [21]

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Step-by-step explanation:

we know that

<u><em>Combinations</em></u> are a way to calculate the total outcomes of an event where order of the outcomes does not matter.

To calculate combinations, we will use the formula

$C(n,r)=\frac{n!}{r!(n-r)!}$

where

n represents the total number of items

r represents the number of items being chosen at a time.

In this problem

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substitute

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3 years ago