The shape is a square, therefore, all sides are equal.
The edge of the circle touches the edge of the square, and thus, one side of the square can be considered to be the same length as the diameter of the circle.
The formula for circumference is :
2"pie"r
Perimeter = 40ft.
Therefore each side = 10ft.
Therefore diameter = 10ft.
Therefore radius = d/2 = 10/2 = 5 ft.
Therefore circumference = 2"pie"5 ft = 10"pie" ft
(don't forget the unit of measurement!)
Hope this helped ~
Answer:
the correct answer is 3.
Step-by-step explanation:
3×3×3= 27
Answer:
=22 m²
Step-by-step explanation:
Total area= Area of rectangle 1 + Area of rectangle 2
Answer:
h = 9 cm
Step-by-step explanation:
A rectangular pyramid has a volume of 315 cm^3.
The base has a width of 15 cm and a length 7 cm.
Find the height h of the pyramid .
<u>Vol = 1/3 (base area) h</u>
where base area = 7 x 15 = 105 cm²
vol = 315 cm³
plugin values into the formula
315 = 1/3 (105) h
h = <u> 315 </u>
(1/3 * 105)
h = 9 cm
