Question

Is Arc AB 90 degrees?

Answer 1

since the diameter of the circle is 4cm the radius = 2cm

Answer 2

yes but how will that help me find the arc AB

Answer 3

?

Answer 4

what is the circumference of the circle?

Answer 5

you dont need circumference to find area ....

Answer 6

let arc AB=x
then circumference/4= x

Answer 7

did you see what i did there?

Answer 8

the picture is asking to find the area of the shaded portion; even tho the post alludes to some arc length ...

Answer 9

the circumference of the circle is 2*pie*r = 2*3.14*2 = 12.56
arc AB = 12.56/4 = 3.14