Sum of colored angles

Geometry Level 2

All the blue lines in the above diagram are parallel to the base of the triangle. Find the sum of the measures of the colored angles.


The answer is 400.

A Former Brilliant Member by A Former Brilliant Member

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1 solution

Hana Wehbi
Nov 16, 2017

I used properties of parallel lines (corresponding and vertical angles are equal)

We get the sum of the colored angles = 400 400

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@Hana Nakkache Nice figure

Sumukh Bansal - 3 years, 5 months ago

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Thank you, not neat. It’s ok.

Hana Wehbi - 3 years, 5 months ago

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Just Joking! How did you get it?????

Sumukh Bansal - 3 years, 5 months ago

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@Sumukh Bansal – I took a screenshot and used the editing pen.

Hana Wehbi - 3 years, 5 months ago

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