2 answers:
Answer:
8
Step-by-step explanation:
The perimeter is adding all 4 sides
We know one side is 9
The other three sides are in the ratio
1:2:4
Multiply by x to give the side lengths
x, 2x, 4x
The Perimeter is
9+ x+2x+4x=65
9+7x=65
Subtract 9 from each side
9-9 +7x =65-9
7x = 56
7x/7 = 56/7
x=8
The shortest side is 8
we just need add x next to ratio and sum them all to get perimeter
9 + x + 2x + 4x = 65
7x = 56
x = 8
well since 8(x)<9<16(2x)<(32(4x), then
the shortest side is 8
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