a mirror of length 20 cm and width 15cm is to be framed with a 2 cm wide frame required. also find the cost of framing at the rate of Rs.15 per cm square
Answers
Answered by
63
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 perimeter will be 2 (l + w)
= 2 x (19 + 24)
= 2 x 43
= 86 cm
The perimeter will be 2 (l + w)
= 2 x (19 + 24)
= 2 x 43
= 86 cm
Answered by
35
Answer: Cost of framing is Rs. 6840.
Step-by-step explanation:
Since we have given that
Length of mirror frame would be
20+2+2=24 cm
Width of mirror frame would be
15+2+2=19
Area of frame would be
length × breadth
24 × 19
= 456 cm^2
Cost per sq. Cm = Rs. 15
Total cost would be
456×15 = Rs. 6840
Hence, cost of framing is Rs. 6840.
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