Math  /  Geometry

QuestionThe compound shape below is formed from a rectangle and a sector of a circle.
Calculate the perimeter of the compound shape. Give your answer in centimetres (cm) to 1 d.p.

Studdy Solution
Sum the relevant parts to find the total perimeter of the compound shape:
Ptotal=Prectangle+L P_{\text{total}} = P_{\text{rectangle}} + L =81cm+12.9cm = 81 \, \text{cm} + 12.9 \, \text{cm} =93.9cm = 93.9 \, \text{cm}
The perimeter of the compound shape is:
93.9cm \boxed{93.9 \, \text{cm}}

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