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mixer [17]
3 years ago
14

Determine side x. Round to the nearest unit. 20 9 12 5

Mathematics
1 answer:
tatyana61 [14]3 years ago
6 0

Answer:

12

Step-by-step explanation:

First, you will have to use trigonometry. Since the side of the triangleis the opposite of the angle 53 and the hypotenuse, you will use sin.

Sin 53 degrees = opposite side / hypotenuse side.

The opposite side is x and the hypotenuse side equals 15.

sin53= x/15

15 ( sin 53 ) =x

x= 11.97953

Round

x=12

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Answer:

A. 109

Step-by-step explanation:

We know that since AB = CB, then ΔABC is isosceles.

Since AC, one of the sides of ΔABC, is on the diameter of circle D, by definition, we know that ΔABC is also a right triangle. Thus, if ΔABC is an isosceles right triangle, then ∠BAC = ∠BCA = 45°.

Draw a line connecting D to B so that we now have isosceles triangle BDC. Since arc BC is 52°, by definition of central angles, ∠BDC is also equal to 52°. Then, ∠DBC = ∠DCB = (180 - 52)/2 = 64°.

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<em>~ an aesthetics lover</em>

3 0
3 years ago
A rectangle has an area of 717.8m squared. One of the sides is 7.4m in length. What is the perimeter of the rectangle btw it’s n
vlabodo [156]

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Olenka [21]

Answer:

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Step-by-step explanation:

Given that y varies directly as x then the equation relating them is

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8 0
3 years ago
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