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Nadusha1986 [10]
4 years ago
11

a regular pentagon-based pyramid has 5 faces which are equilateral triangles the perimeter of it's net is 70cm what is the perim

eter of the base?
Mathematics
1 answer:
netineya [11]4 years ago
3 0

Answer:

35cm

Step-by-step explanation:

The net of a regular pentagon has 10 sides.

Since each of the faces are equilateral triangles, the side lengths are equal.

Therefore:

Length of each side of the net = 70/10 =7cm

Therefore, the base is a regular pentagon of side length 7cm.

The perimeter of the base of the pyramid = 5 X 7

=35cm

The perimeter of the base of the pyramid is 35cm.

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Answer:

A) 13

Step-by-step explanation:

l // m

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Solve your equation step-by-step.

2(x−3)−17=13−3(x+2)

Simplify both sides of the equation.

2(x−3)−17=13−3(x+2)

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Jenna is running a trail that is 8 4/7 miles long. If she has finished running 5/9 of the distance, about how far has she run?
Varvara68 [4.7K]

Answer:

Jenna has run the distance of \frac{100}{21} miles .

Step-by-step explanation:

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Or , Distance =  \frac{60}{7} miles

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I.e The distance cover by Jenna =  \frac{5}{9} ×  \frac{60}{7}

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Question 21
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Answer:

<em>A(x) = 6x² + 26x </em>

Step-by-step explanation:

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