3 years ago

Write an expression that represents the perimeter of the figure below.

Mathematics

1 answer:

Naddik [55]3 years ago

4 0

Answer:

P = 15p - 35

Step-by-step explanation:

Regular means that all sides have the same length

A pentagon has 5 sides

P = 5s

P = 5( 3p -7)

Distribute

P = 15p - 35

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(A) 40 km

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Step-by-step explanation:

To find the missing side of this triangle, let's use the Pythagorean theorem.

$a^2+b^2=c^2$ , assuming that a and b are legs, and c is the hypotenuse.

Assuming the 9km side is a, we need to find the value of b, so we can substitute into the equation.

$9^2+b^2=41^2\\81+b^2=1681\\b^2=1681-81\\b^2=1600\\\\b = \sqrt{1600} \\b=40$

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$\frac{9\cdot40}{2} \\\\\frac{360}{2}\\\\180$

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