The radius of a circle is 9 ft. Find its area in terms of pi

81pi square feet

Step-by-step explanation:

Area of circle is pi*r^2

= 81pi

Solution,

Radius=9 ft

Area of circle= pi*(r)^2

=pi*(9)^2

=81 pi ft^2

Hope it helps

Good luck on your assignment

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)

step-by-step explanation:

de-gf

hj=3x+20

ji=15x-64