Question

What is the length of arc AB? Use your calculator and round your final answer to the nearest hundredth

Answer 1

Do you know that a central angle is equal to its arc?

Answer 2

No I did not

Answer 3

So what is the degree measure of arc AB?

Answer 4

It would be 90 then? Unless I'm very confused.

Answer 5

Yes, it would be 90. And how many degrees are in the entire circle?

Answer 6

360.

Answer 7

So what part of the entire circle are we talking about?

Answer 8

1/4 of the circle

Answer 9

So find the length of the entire circle (that is called circumference) and divide it by 4 to find the length of arc AB

Answer 10

62.8 / 4 = 15.7

Answer 11

yep