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Natalie Manosar

Student Instructions

Angle Sum Theorem Challenge #1

Find the values of y and x. Use the mic and pen tool to show and explain your work.

9th Grade, 8th Grade, Math
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Compatible with: Chromebooks, computers, iPads, iPhones, Android tablets, Android phones, Kindle Fire

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Teacher Notes (not visible to students)

y = 68 x = 20 The unlabeled angle must measure 44 degrees to complete the 180 degrees of the obtuse triangle on the left. Since the 2 y's and 44 degree angle form a linear pair. Each y must be 68 degrees. So, x must be 20 to add up to 180 degrees in the triangle on the right.