Question

what is the perimeter of the following image

Answer 1

The figure is made up of a triangle having 2 sides of 6cm and a semicircle with diameter 10.8cm so the radius is 5.4cm.
To find the perimeter we need to add the two sides of triangle and the circumference of the semicircle excluding the line.
this means that
6+6+2πr/2
=12+πr
=12+22/7×5.4
=12+16.97(or 17)
=29cm
hope it helps
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