ComicSans10
26.03.2021 •
Mathematics
Can anyone figure this out?
Solved
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Ответ:
Length=18 cm
&, width=5 cm
Explanation:
Let,
length of rectangle= L
width of rectangle= W
Then according to question,
length = 3cm more than 3 times width
L= 3 + 3×W
L= 3 + 3W➡ Eqn(1)
Also,
perimeter=2×(length + width)
46= 2L+2W
46=2×(3+3W)+2W➡eqn(1) is used
46-6=8W
40=8W
W=5 cm
Thus,from above eqn,
L=3+3×5
L=18 cm