Find the area and the perimeter of the shaded regions below. Give your answer as a completely simplified exact value in terms of π (no approximations). The figures below are based on semicircles or quarter circles
+37146 Area of a quarter circle of radius 12 = 1/4 pi 12^2
subtract the triangle area: 1/2 b h = 1/2 12 x 12
perimeter = hypotenuse of right triangle with legs = 12 and 12 sqrt (122 + 122 )
+ 1/4 pi x d d = diameter = 24
+37146 How long I will live..... will I fall off of the mountain I am climbing tomorrow? (cloud peak WY USA) Hope not.....but at least I will be smiling !!
I make a lot of mistakes...I learn from them all ! (If I survive)
