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3 years ago

I need help pls !!!!

Mathematics

1 answer:

Phantasy [73]3 years ago

3 0

Answer:

See Below

Step-by-step explanation:

Ok, so in this problem you have some vertical angles. These are angles oppisites from each other. Therefore; d = 52, f = ?, and e = 77. All the angles added together will = 360. Let's add up the angles we know and subtract the whole from 360.

52 + 52 + 77 + 77 = ?

104 + 154 = 258

360 - 258 = 102

Since we know that f and the unlabeled angle are the same, we need to divide this total between the two of them.

102/2 = 51

Therefore;

d = 52

e = 77

f = 51

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The length of PR is 4.4 units.

Explanation:

It is given that the length of the hypotenuse is 10 units.

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$\cos \theta=\frac{a d j}{h y p}$

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Substituting these values in the formula, we get,

$\cos 64=\frac{P R}{10}$

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