15 cm
•
10 cm
A rectangular piece of 15 cm x 10 cm is cut from the metallic
sheet shown in the given figure.
(a) Find the perimeter of the metallic sheet before cutting.
(b) Find the total perimeter of both the sheets after cutting.
22 cm
1 ruins around a rectangular park with
Answers
Answered by
10
a. perimeter of rectangle is 2(l+b)
=2(22+10)
=2×32
=64
nidhi0:
2(l+b)=2(10+15)=50
answer is wrong
answer is 72 cm
the rest of sheet is l=6 and b=7
the total perimeter is 2(7+6)= 22
add both then 50+22=72
ans is 72
thanks
wait there is mistake
that is 10 -22 and 15 -4 the perimeter = 2(2+9)=22
Answered by
7
(I) 2(l+b)
= 2 (22+10)
= 2×32
= 64
(ii) 2 (15+4+22+10)
= 2×51
=102
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