2 years ago

Please help me with math

Mathematics

1 answer:

I am Lyosha [343]2 years ago

3 0

The answer is 12, 13 and 16

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Answer:

Step-by-step explanation:

let each angle=A

A+A+A=180

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as the angles are equal so sides are equal.

16+y=46

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applying sine formula

$\frac{30}{sin z} =\frac{46}{sin~80} \\sin~z=\frac{30}{46} \times ~sin~80=\frac{15}{23} \times sin ~80\\z=sin^{-1}( \frac{15}{23} \times sin ~80) \approx~39.96^\circ \approx40^\circ$

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Step-by-step explanation:

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