Question

A mirror of length 20 cm and width 15 cm is to be frame with the to cm wide frame find the area of the frame required also find the cost of framing at the rate of 15 cm sq

Answer 1

Answer:

$since \: we \: have \: given \: that \\ length \: of \: the \: frame \: \\ would \: be \: = 20 + 2 + 2 = 24cm \\ width \: of \: frame \: would \: be \: = 15 + 2 + 2 = 19cm \\ area \: of \: frame \: will \: be \: = 24 \times 19 = 456cm {}^{2} \\ cost \: per \: cm { }^{2} = 15rupees \\ total \: cost = 456 \times 15 = 6840rupees$