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nordsb [41]
4 years ago
11

A right triangle has a hypotenuse C=12cm and a an angle A= 30°. find the length of side a, witch is opposite angle A

Mathematics
1 answer:
Alisiya [41]4 years ago
7 0
Use the sin identity to find that side.  Sin(30) = a/12...12 sin(30) = a, and a = 6
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5
mixas84 [53]

Answer:

x = 60°

y = 50°

Step-by-step explanation:

✅x = 180° - (50° + 70°) (sum of interior angles of a triangle theorem)

x = 180° - 120°

x = 60°

✅Based on the exterior angle theorem, the sum of the opposite interior angles of a triangle = the exterior angle.

Therefore,

50° + 60° = x + y

Plug in the value of x

50° + 60° = 60° + y

110° = 60° + y

y = 110° - 60°

y = 50°

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Answer:

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Step-by-step explanation:

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