dimensions of a rectangle with the perimeter of 26 cm and an area of 42 square cm?dimensions of a rectangle with the perimeter of 26 cm and an area of 42 square cm?
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l*b =42 ---l= 42/b put this in equation...2(4
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Answer:
L=6
B=7
Step-by-step explanation:
from perimeter
26=2(l+b)
13=l+b
l=13-b
from area
42=l×b
42=(13-b) ×b
42=13b-b^2
b^2-13b+42=0
b will be equal to 7
and l =6
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