A mirror of length 20 cm and width 15 cm is to be framed with a 2 cm wide frame. Find the area of the frame required. Also,find the cost of framing at the rate of 20 per cm².
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Dimensions of the given frame =
(20+2+2) × (15+2+2) {2cm both sides}
= 24cm × 19cm
Area of the rame = 24 × 19 = 456 cm²
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