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777dan777 [17]
3 years ago
5

When you know the measures of two angles in a triangle, how can you find the third angle measure?

Mathematics
2 answers:
Goshia [24]3 years ago
7 0
Subtract all the angles by 180
Paraphin [41]3 years ago
3 0
Add the two angle measurements together, then subtract by 180. I think this is the Triangle Angle Sum Theorem.
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Please help! need help with geometry work.
lakkis [162]

Answer:

1) Is 90° because that's what the little square in the corner means.

2) Is 60° because if you take everything to the right of the vertical line and add them up, and then subtract the total from 180° you can find the missing angle.

3) Is 30° because if you use what's below the horizontal line and do the same thing as number 4 (add the existing angles together and subtract the total from 180) you can find the missing angle.

4) Is 20° because if you add the existing angles together (40° + 90° + 30°), you'll get 160°, and since the diagonal line that's separating everything from 40° to 30° looks as though it equals 180°, you'd subtract 160° from 180° in order to get the missing angle.

5) Is also 90° because the angle across from it (1) looks to be around the same size.

I solved for each in the following order:

1, 5, 4, 3, 2.

I hope this helps. Also please let me know if I got something wrong or if you still need help :)

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lidiya [134]

Answer:

I don't know, but you got this!

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3 years ago
HELP NEED TO GRADUATE SO I NEED TO FINISH THIS FLVS
Mademuasel [1]
The answer is B :)

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4 0
3 years ago
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