Isosceles triangles 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.
- 5 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
Isosceles triangle top angle 40- A) x = 180
- B) x = 70
- C) x = 110
- D) x = 140
2 Question 2
Isosceles triangle top angle 100Type the answer.
3 Question 3
Isosceles triangle base angle 50- A) x = 180
- B) x = 100
- C) x = 80
- D) x = 130
4 Question 4
Isosceles triangle top angle 90Type the answer.
5 Question 5
Isosceles triangle top angle 36- A) x = 180
- B) x = 36
- C) x = 72
- D) x = 144
6 Question 6
Isosceles triangle top angle 120Type the answer.
7 Question 7
Isosceles triangle base angles 4x − 10 and 2x + 30. Find x.- A) x = 20
- B) x = 40
- C) x = 10
- D) x = 30
8 Question 8
Isosceles triangle base angle 30Type the answer.
9 Question 9
Isosceles triangle top angle x, base angle x + 30. Find x.- A) x = 60
- B) x = 180
- C) x = 40
- D) x = 75
10 Question 10
Isosceles triangle top angle 60Type the answer.