Question

6. Determine the perimeter of the following composite figure. Do not

forgets units!
Plz help me I don’t really understand

Answer 1

1073.6m

Explanation:

Perimeter of A = pi * D ( D is the diameter )

= 3.14 * 120 ( multiply the radius by 2 because diameter is half the radius)

= 376. 8 m

Perimeter of B = S+ S+ S + S

= 100 + 100 + 60 + 60

= 320 m

Perimeter of C = same as A ( 376. 8 m )

Add all perimeters:

376.8 + 376.8 + 320 = 1073. 6 m

NB: Shape a and c are the semi circles and shape b is the rectangle.

HOPE THIS HELPED