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11 votes
11 votes
Help me pls this is very hard for me and plus i gotta turn this in tomorrow

Help me pls this is very hard for me and plus i gotta turn this in tomorrow-example-1
User Gnur
by
2.6k points

1 Answer

18 votes
18 votes

Answer:
\Large\boxed{x=40^\circ}

Explanation:

Given information

∡ 1 = 90°

∡ 2 = 50°

∡ 3 = x°

Total Angle = 180° (Triangle angle sum theorem)

Given formula

∡ 1 + ∡ 2 + ∡ 3 = Total Angle

Substitute values into the formula

(90) + (50) + (x) = (180)

Combine like terms

140 + x = 180

Subtract 140 on both sides

140 + x - 140 = 180 - 140


\Large\boxed{x=40^\circ}

Hope this helps!! :)

Please let me know if you have any questions

User Ytu
by
3.0k points