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.
Answer:
No, A
Step-by-step explanation:
Relfexive property refers to a mirror. It is a same side or angle shared by two figures.
Answer:
irrational irrational rational irrational rational
So this is an equation.
The starting value is the given value 400.
She gave g packs to the orphanage, so she now has 400-g packages.
Then she divides that by 4 and gives to 4 different charities.
The answer is (400-g)÷4
Hope this helps!