a mirror of lenth 20 cm and width 15 cm is to be framed with a 2 wide frame. find the area of of the frame requiredd
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The frame will have a width of 15 cm plus 2 cm on each side = 15 + 2 + 2 = 19 cm. The length will be 20 cm plus 2 cm on each side for a total length of 20 + 2 + 2 = 24 cm. The area will be l*b= 24*19= 456cm ²
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