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Karo-lina-s [1.5K]
2 years ago
8

I need help with this question I’m stick

Mathematics
1 answer:
bonufazy [111]2 years ago
4 0

Answer:

4.8 (you can check but that's what I got)

Step-by-step explanation:

First find the missing angle by subtracting the sum of the two given from 180°

180-(47+90) =43°

Then use the Law of Sines to find the missing side

x/sinC = a/sinA

x/sin(90°)/3.5/sin(47°)

x=sin(90°)×(3.5/sin(47°))

x=4.7856...

x ≈ 4.8

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An angle is 21 degree more than twice its complement find it
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Answer: 67°

Step-by-step explanation:

Complementary angle refers to the angle that when added together will be equal to 90°.

Let the measurement of the angle's complement be x.

Therefore, the angles are x and 2x + 21. Since it's a complementary angle, therefore,

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Therefore, the angle will be:

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