perimeter of a triangle is 30 cm. the 1st side is rwice its 3rd side and 2nd side is one-fifth of the 3rd side.
write in equation form.
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Step-by-step explanation:
The third side = (2/3 - 1/5) of the perimeter = 7/15 of the perimeter = 7m
The first side is 1/3 (=5/15) of the perimeter = 5m
The second side is then 3m ( or 1/5=3/15 of the perimeter).
The triangle perimeter is =(7 m+5m+3m)
= 15 m
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