Answer:
Step-by-step explanation:
Question One
Since there are four questions here, I'm going to take some short cuts.
This is a rectangle with 2 equal semicircles. That makes a whole circle.
The diameter of this circle is 16 - 12 = 4
Edit This question was originally incorrect.
So
Circle
Circle = pi*d
Circle = 3.14 * (d)
Circle = 3.14 * 4
Circle = 12.56
Rectangle
Lengths = The perimeter includes 2 lengths.
Lengths = 2 * 12 = 24
Lengths = 24
Total Perimeter
36.56
Answer A
Question Two
Circle
The radius of the circle is 9
The area of the circle is A = pi * r^2
Area of the circle is A = 3.14 * 9^2
Area of the circle is A = 254.34
Square
S (the side = 2*radius
S = 2*9
S = 18
Area of the square = 18^2
Area of the square = 324
Area of the Shaded Part
Area of the shaded Part = 324 - 254.34
Area of the Shaded Part = 69.66
Looks like C is the right Answer
Problem 3
<u>Triangle</u>
b = 8.8
h = 7.8
Area = 1/2 * b * h
Area = 1/2 * 8.8 * 7.8
Area = 34.32
<u>Rectangle holding the triangle up</u>.
Width = 8.8 - 2*3
Width = 8.8 - 6
Width = 2.8
Length = 19.2 - 7.8
Length = 11.4
Area = L * w
Area = 2.8 * 11.4
Area = 31.92
<u>Total Area </u>= 31.92 + 34.32 = 66.24
It looks like some rounding was done. The closest answer is B
Grandma's Garden has been done elsewhere.
