8th Grade Triangle Types Quizzes, Questions & Answers

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Algebraic Terms Graphing Lines Multi Step Problems Integer Solutions With Exponents Exponent Rules Area Formulas Quadratic Formula Inscribed Angles Quadratic Form Geometric Rotation Times Tables Mixed Numbers Coprime Numbers Divisibility Proofs

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Triangle Test Secrets That’ll Expose What You Don’t Know In Math

You’ve probably been there before—staring at a geometry question, and the triangle in front of you just doesn’t make sense. The angles don’t add up, the sides feel tricky, and suddenly, what looked simple...

Questions: 20 | Attempts: 2290 | Last updated: Sep 5, 2025

Sample Question 1
Two angles of a triangle are 40 degrees and 80 degrees. What is the measure of the third angle of the triangle?

80

60

120

30

Cannot be determined

Sample Question 2
Describe a triangle with the following angle measures: Angle A = 45 degrees, Angle B = 45 degrees, Angle C = 90 degrees.

Isosceles, Right Triangle

Scalene, Right Triangle

Equilateral, Right Triangle

Isosceles, Obtuse Triangle

Scalene, Acute Triangle

Sample Question 3
Find the missing angle of the triangle below.

110

70

35

75

50