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Dimas [21]
3 years ago
12

UNIT 5 SIMILARITY, RIGHT TRIANGLE TRIGONOMETRY, AND PROOF

Mathematics
1 answer:
Lapatulllka [165]3 years ago
6 0
M4 and m2 are equivalent
M2 and m3 are supplementary angles which mean they add up to 180°

M2+m3=180

Plug in the equation
3x+74+2x+11=180
Add up the x’s 3x+2x=5x
Add the constants on the left side
74+11=85
You get 5x+85=180
Subtract 85 from both sides
5x=95
Divide by 5
X=19

Now plug x into the m3 equation and get
2*19+11=49°
Because m4=m3, m4=49°

M3 and m1 are equivalent so set both equations equal to each other and solve bringing the same variables on each side

11x-9=7x+23
11x-7x=23+9
4x=32
X=8

Now plug x into either equation and you get
M3=79°

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