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Don’t use for points or will take it back

Help Don’t use for points or will take it back-example-1
User Dotnetom
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1 Answer

6 votes

Answer:

The sum of angles is 180°.

:. 90° + 50° + x° = 180°

140° + x° = 180°

x = 140° - 180°

:. x = 40°

:. The missing angle = 40°

Explanation:

:. = therefore

Hope it is helpful.....

User Haitham Sweilem
by
6.4k points