A circle has a sector with area (69/5)π and central angle 138∘. What is the area of the circle? (Give an exact answer. You answer may include pi. Example: 3/2 pi or 3pi/2 or 6pi.)

36π

Step-by-step explanation:

A circle has 360°.

The given section of the circle has 138°, which is 138/360 of the area of the entire circle. Let A be the area of the entire circle.

answer

a,b, and d

explanation

a reflection angle is more than

but less than;

an angle that measures

is a reflex angle.(true)

an angle that measures less than

is acute.(true)

provided we are considering angles greater or equal to zero.

an acute angle lies in the range.

an obtuse angle is less than 180° but more than 90°

an angle that measures 300° is obtuse (false)

an angle that measures 65° is an acute angle.(true)