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fenix001 [56]
3 years ago
9

Find the perimeter of a trapezoid with sides that measure 13.1 inches, 5.8 inches, 5.4 inches and 16 inches.

Mathematics
2 answers:
victus00 [196]3 years ago
7 0
Hey there! :D

The perimeter is all the sides added up, so:

We know that the trapezoid already has 4 sides, so we have all the measures and can add them together. 

13.1+5.8+5.4+16= 40.3

So, the perimeter (all the sides added up) is 40.3 inches. 

I hope this helps!
~kaikers
Zigmanuir [339]3 years ago
6 0
A trapezoid has 4 sides. You have everything you need, just add them together. The perimeter of this trapezoid is 40.3 inches or 3.358 feet. 
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An isosceles triangle has a perimeter of 36 inches. Its base is 2
astra-53 [7]

The lengths of the sides of the triangle are 8, 8, 20

Explanation:

Given that the perimeter of an isosceles triangle is 36 inches.

The base of the triangle is 2\frac{1}{2} times longer than each of its legs.

We need to determine the lengths of the sides of the triangle.

<u>Lengths of the sides:</u>

Let x denote the lengths of the sides of the triangle.

The base of the triangle is given by

2\frac{1}{2}x=\frac{5}{2}x=2.5x

Perimeter of the isosceles triangle = Sum of the three sides of the triangle.

Thus, we have,

36=x+x+2.5x

36=4.5x

8=x

Thus, the length of the sides of the isosceles triangle is 8 inches.

Base of the triangle = 2.5(8)=20 \ inches

Hence, the three sides of the isosceles triangle are 8, 8, 20

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Rudik [331]
8 + 0.3  = 

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