Question

a portrait of length 2.5m and breadth 2m is being framed. the thickness of the frame is 0.5m find the area of the portrait that is visible

Answer 1

thickness of frame = 0.5. l = 2.5-0.5 = 2 m
b = 2m. h = = ?

Area = 2×(l+b)×h
= 2×4×h
=8×h
Area = 8h

8h = 2×4×h
8h/h = 2×4
7h = 8
h = 1.2 m
Area = 2×4×1.2
=8×1.2
Area of the portrait = 9.6 m

Answer 2

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