Answer:
<h2>C = 70π cm</h2><h2>A = 2,450 cm²</h2>
Step-by-step explanation:
The perimeter of the given figure is equal to the circumference of whole circle.
The formula of a circumference of a circle:

d - diameter
We have d = 70 cm. Substitute:

The area of given figure is equal to the area of rectangle 70cm × 35cm.
(look at the picture).
The area of a rectangle:

<h3>
Answer: 729 cubic meters</h3>
Work Shown:
volume = side*side*side
volume = 9*9*9
volume = 729
A slight shortcut would be to say 9^3 = 729
Answer:
x=-2
Step-by-step explanation:
3x-1=8x+8+1
3x-1 = 8x+9
3x-1+1=8x+9+1
3x= 8x+10
3x-8x=8x+10-8x
-5x=10
-5x ÷-5
10 ÷-5
x=-2
Answer:
113.04ft^2
Step-by-step explanation:
Like before 