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pentagon [3]
3 years ago
13

Find the length of side AC.

Mathematics
2 answers:
Nat2105 [25]3 years ago
7 0

Answer:

45

Step-by-step explanation:

because its a right angled triangle which should be 90 degrees so 90-45=45 so AC is 45 and AB is 45 so the triangle ACB is  90

bija089 [108]3 years ago
7 0
<h2>Answer:</h2>

<u>The length of side AC is</u><u> 4.25</u>

<h2>Step-by-step explanation:</h2>

By using trigonometric formula

Sin θ = Perpendicular / Hypotenuse

But we dont have the angle A so lets find that first

We know that the sum of all interior angles of triangle is 180 so 45+A+90 = 180

Or A+135= 180 => A= 45

Now

Sin θ = Perpendicular / Hypotenuse

Sin 45 = perpendicular / 5

0.85 = Perpendicular / 5

Perpendicular = 5 * 0.85

Perpendicular = 4.25 which is AC

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