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G-CO.10 Warmup M2-034-A03-V02

Prove triangle theorems including angle sum, isosceles base angles, midsegment theorem, and medians concurrence.

Find a triangle's exterior angle from the two remote interior angles

Problem

The \(\text{two}~\text{remote}~\text{interior}~\text{angles}\) of a triangle measure \(30^{\circ}\) and \(80^{\circ}\). Find the exterior angle.

Unworked triangle configuration showing only the supplied givens. Open full size
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Four variants of this problem type
Curriculum context
Course
Math II
Standard
G-CO.10
Category
Geometry
Domain
Congruence
Objective
Prove triangle theorems including angle sum, isosceles base angles, midsegment theorem, and medians concurrence.
Problem type
Find a triangle's exterior angle from the two remote interior angles