Question

Express answers in simplest exact form.

What is the area of a sector with measure of arc equal to 90° and radius equal to 1 foot?

Answer 1

Well if you draw this as a circle

Answer 2

and 90 degrees of it makes it 1/4 of the entire circle

Answer 3

so the you have the area of a circle which pi r ^ 2

Answer 4

then over 4

Answer 5

so the answer is pi/4

Answer 6

OH yeah, sorry i forgot 90: 1/4.

Answer 7

no problem

Answer 8

Thanks for your help!