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3 years ago

Find m A. 20 B. 40 C. 60 D.120

Mathematics

2 answers:

KonstantinChe [14]3 years ago

7 0

The answer is C.

I only know this because it is an acute angle so "D" is wrong. It is also too wide to be "A" or "B" so the only of that is left is "C". through process of elimination.

Hatshy [7]3 years ago

4 0

∠FEG is an exterior angle.
An exterior angle of a triangle is equal to the sum of the opposite interior angles, so

2x + x = x + 40
3x = x + 40
3x - x = 40
2x = 40
x = 20

m∠FEG = x+40 = 20+40 = 60°

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Use the law of Sines to find the missing angle of the triangle. <br> Find m

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Ah...Trigonometry is fun!

The law of sines states:
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We then plug in our given values to find C

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3 years ago

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Afina-wow [57]

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The general form of a quadratic equation is ax²+bx+c = 0

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3 years ago