Test your understanding of triangle concepts.
Try to answer the questions before checking the answers at the bottom of the page.
Question 1
What is the sum of the interior angles of a triangle?
A) 90°
B) 180°
C) 360°
Question 2
Find the area of a triangle with base 6 and height 4.
A) 10
B) 12
C) 24
Question 3
What is the hypotenuse of a right triangle with sides 6 and 8?
A) 9
B) 10
C) 12
Question 4
Two interior angles of a triangle are 50° and 60°.
Find the third angle.
A) 60°
B) 70°
C) 80°
Question 5
What is the sum of the exterior angles of a triangle?
A) 180°
B) 270°
C) 360°
Answers
1️⃣ B – 180°
2️⃣ B – 12
Area = (1/2)(6)(4)
3️⃣ B – 10
Using the Pythagorean formula
4️⃣ B – 70°
50 + 60 + x = 180
5️⃣ C – 360°
Practice
- More Examples
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Continue Learning
- Types of Triangles
- Triangles (Basics)
- Sum of Angles of a Triangle is 180° (Proof)
- Find the Missing Angle of a Triangle
- Sum of Exterior Angles of a Triangle (Proof)
- Exterior Angle Theorem of a Triangle
- Two Exterior Angles at a Vertex are Equal (Proof)
- Two Exterior Angles are Equal at a Vertex (Quick Proof)