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Reika [66]
3 years ago
8

What is the perimeter of this polygon?

Mathematics
1 answer:
vaieri [72.5K]3 years ago
5 0
The answer to this question is D
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Find the lengths of the missing side . Simplify all radicals !!!<br> help mee!!!!!!
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Answer:

e = 13\sqrt{2}

f = 13\sqrt{2}

Step-by-step explanation:

The ∆ given is an isosceles ∆ with a right angle measuring 90°, and two congruent angles measuring 45° each.

Using trigonometric ratio formula, we can find the lengths of the missing side as shown below:

Finding e:

sin(\theta) = \frac{opp}{hyp}

sin(\theta) = sin(45) = \frac{\sqrt{2}}{2}

hyp = 26

opp = e = ?

Plug in the values into the formula

\frac{\sqrt{2}}{2} = \frac{e}{26}

Multiply both sides by 26

\frac{\sqrt{2}}{2}*26 = \frac{e}{26}*26

\frac{\sqrt{2}}{2}*26 = e

\frac{\sqrt{2}}{1}*13 = e

13\sqrt{2} = e

e = 13\sqrt{2}

Since side e is of the same length with side f, therefore, the length of side f = 13\sqrt{2}

3 0
3 years ago
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Furkat [3]

Given: 48 students took the exam.

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To find the percentage, take the part (28 students) divided by the whole (48 students) then multiply the quotient by 100.

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58.33% of the students who took the exam scored an 80% or higher

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You install 638 feet of fencing along the perimeter of a rectangular yard. The width of the yard is 152 feet. What is the length
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The length is 486

Step-by-step explanation:

638 subtract 152

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Step-by-step explanation:

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