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 Class 7 Mathematics Length, Perimeter and Area: Perimeter and Circumference

The figure below represents the design of a window. The design consists of a square of sides 5 cm, a circle of diameter 7 cm and a rectangular frame measuring 26 cm by 15 cm. The square and the circle are joined to each other and to the frame by lines each 4 cm long.
figperimeter19520201131.JPG
What is the total length, in cm of the metal needed to make the design? (Take #pi=22/7#)

A. 42
B. 82
C. 124
D. 152

 (5m 13s)
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