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2 years ago

12

Each of the equal sides of an isosceles triangle is 5 times the third side. The perimeter of the triangle is 121 inches. Find th

e sides of the triangle.

1 answer:

Nikitich [7]2 years ago

3 0

Answer:

The third side is 11 inches

the other 2 sides are 55 and 55 inches.

Step-by-step explanation:

X + 2(5x) = 121

x + 10x = 121

11x = 121

x = 121/11

x = 11

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Answer:

Exact dimensions:

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Approximate dimensions:

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Step-by-step explanation:

Let's assume width of rectangle is w ft

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so,

length =w+2

$L=w+2$

now, we can find area

$A=L\times W$

now, we can plug it

$A=(w+2)\times w$

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and then we can solve for w

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we can use quadratic formula

$ax^2+bx+c=0$

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now, we can compare and find a,b and c

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$w=\frac{-2\pm \sqrt{2^2-4\cdot \:1\left(-6\right)}}{2\cdot \:1}$

$w=-1+\sqrt{7},\:w=-1-\sqrt{7}$

we know that dimension can never be negative

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Exact dimensions:

$width=-1+\sqrt{7}$

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$length=1+\sqrt{7}$

Approximate dimensions:

$width=1.64575ft$

$length=1.64575+2$

$length=3.64575ft$

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