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1 year ago

Select the correct answer.

Mathematics

1 answer:

sp2606 [1]1 year ago

6 0

The perimeter of the pentagon with apothem of 5cm is 28.87cm

<h3>How to calculate the perimeter of a pentagon</h3>

The sum of all the external sides of the pentagon is its perimeter.

First we need to calculate the half of one of its sides using the SOH CAH TOA

tan 30 = x/5

x = 5 tan 30

x = 2.89

One of the sides = 2(2.89) = 5.77 cm

Perimeter of th pentagon = 5(5.77) = 28.87

Hence the perimeter of the pentagon with apothem of 5cm is 28.87cm

Learn more on perimeter of pentagon here: brainly.com/question/11484726

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Which of the following equations can be used to find the length of EF in the

Vinil7 [7]

The equation which can be used to find the length of EF is option A which is EF= $\sqrt{24^{2} -12^{2} }$ .

Given the length of base of right angled triangle is 12 and the hypotenuse be 24.

We are to find the length of EF and tell which equation can be used to find the length of EF.

We know that pythagoras theorem applies in a right angled triangle.

Pythagoras theorem says that in a right angled triangle the square of the hypotenuse is equal to the sum of square of base and perpendicular.

$H^{2} =B^{2} +P^{2}$

In this triangle we are only given base and hypotenuse and we have to find EF which is perpendicular.

$(DE)^{2} =(EF)^{2} +(DF)^{2}$

EF= $\sqrt{DE^{2}-DF^{2} }$

= $\sqrt{(24)^{2} -(12)^{2} }$ --1

= $\sqrt{576-144}$

= $\sqrt{432}$

Hence the equation which can be used to find the length of Ef is option A which is EF= $\sqrt{24^{2} -12^{2} }$ .

Question is incomplete as it should include the figure also.

Learn more about pythagoras theorem at brainly.com/question/343682

#SPJ1

3 0

1 year ago

Helppppppp I am so dumb sorry

maria [59]

Answer: I think the asnwer is c

Step-by-step explanation:

I suggest this because when your looking at the two different triangles your looking at the sides and the whole shape

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2 years ago

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If you had $300 to convert to euros, would you get more than 300 euros?

Marrrta [24]

Answer:

Yes you would have more than $300 to convert to Euros.

Step-by-step explanation:

If you have $300 in america, and u convert them to euros you will have $275.43

i got this because i looked it up google :)

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3 years ago

A sheet of paper is 8.25 inches wide by 11.3 inches long. What is the area of the front of the paper? 93.225 square inches 94.08

g100num [7]

Step-by-step explanation:

area is just multiply both of the numbers together

8.25*11.3=93.225sqin²

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2 years ago

_____X^2+10x+10_____

Viefleur [7K]

The problem in the picture would be
x^2+10x+21

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2 years ago