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Mathematics 20 Online
OpenStudy (anonymous):

4. Find the value of k. The diagram is not to scale.

OpenStudy (anonymous):

OpenStudy (anonymous):

the angle sum of a triangle is 180° so you need to add up the two angles you know with k, and that has to equal 180: 62 + 45 + k = 180 or k = 180 - 62 - 45 k = 73°

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