Angles in a polygon Quiz
10 questions · easy to harder · Geometry · score and step-by-step answers
How it works
- 10 questions, about 20 minutes (a timer counts down; you can hide it). Solve it right here: no sign-up.
- 4 questions have choices. For the others you type the answer: a number like 4, −2, 7/2 or 3.5, or for example x = 4, x = 2 or x = −3, (3, 5), 2x + 1. Use ^ for powers (x^2) and sqrt for √. Any form with the same value counts (7/2 = 3.5).
- One question at a time: Back, Next, Mark for review and the question list at the bottom. A calculator is on the screen.
- At the end: your percent and grade, every question right or wrong, why a wrong choice is wrong, and its step-by-step solution. Then practise the lesson with new questions.
Your answers and results are kept in this browser only, so you can close the page and come back.
1 Question 1
Find the angle sum of a pentagon.Type the answer.
2 Question 2
Interior angles of a quadrilateralType the answer.
3 Question 3
Angles in a quadrilateral 90, 110, 70, x. Find x.- A) x = 360
- B) x = 270
- C) x = 2
- D) x = 90
4 Question 4
Angles in a quadrilateral 120, 60, 75, x. Find x.Type the answer.
5 Question 5
Each angle of a regular octagon- A) 6°
- B) 1080°
- C) 135°
6 Question 6
Angles in a pentagon 108, 112, 90, 130, x. Find x.Type the answer.
7 Question 7
Angles in a quadrilateral x, 2x, 90, 120. Find x.- A) x = 360
- B) x = 120
- C) x = 50
- D) x = 2
8 Question 8
Angles in a quadrilateral x + 100, 2x + 120, 80, 90. Find x.Type the answer.
9 Question 9
One angle of a regular heptagon- A) 900°
- B) 5°
- C) 128.6°
- D) 1286°
10 Question 10
Angles in a pentagon 2x, 3x, 100, 120, 140. Find x.Type the answer.