21-04-2017
Mathematics

contestada

The figure below shows the circle inside of a square if the radius of the circle Is 8cm find the following by showing the formulas of the work
A.the circumference of the circle ?

B.the area of the circle

C.the area of the square

Respuesta :

21-04-2017

A. The circumference of the circle:
C = 2 π r = 2 * 3.14 * 8 = 50.24 cm

B. The area of the circle:
A = π r² = 3.14 * 8² = 200.96 cm²

C. The area of the square:
Let's calculate first the side of the square. It is equal to 2r = 2*8=16 cm

The area of the square is:
16*16 = 256 cm²

Hope that helps.

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