Answer:
48/49
Step-by-step explanation:
divison and multiplcation
Answer:
True
Step-by-step explanation:
Answer:
jhgdg
Step-by-step explanation:
The shaded region is actually a sector and the formula for the area of a sector is:
central angle/360 x pi x radius squared, which is basically a fraction of the area of the circle. With this basic background knowledge, all we have to do is substitute the values into the formula.
(80/36) x pi x 81
= 80/4 x pi x 9
= 720/4 x pi
= 180pi cm squared.
Check the picture below.
make sure your calculator is in Degree mode.