Answer:
<u>circumference = 12.56 m.</u>
Step-by-step explanation:
circumference of a circle is the distance around the circle or the perimeter of the circle.
the diameter is two times the radius
d = 2 r
circumference = 2 π r = π (2r) = π d
Given: diameter = d = 4 and π = 3.14
<u>∴ circumference = 4 * 3.14 = 12.56 m</u>
Answer:
Step-by-step explanation:
Area of the four walls = 2(Length x height) + 2(Width x height)
Area of the four walls = 2(21 x 28) + 2(13 x 28)
Area of the four walls = 1176 + 728
Area of the four walls = 1904 in²
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Answer: Total area of the 4 walls = 1904 in²
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