Angles in a triangle
The three angles add up to 180°.
Loading a question…
You've done today's 10 free questions.
Come back tomorrow for 10 more, or get unlimited practice with a membership.
Want more today? Print 20 more questions free, with the answers.
Already a member? Sign in.
See worked examples
Two angles of a triangle are 34° and 91°. What is the third angle?
Answer: 55°
Two angles of a triangle are 32° and 33°. What is the third angle?
Answer: 115°
Two angles of a triangle are 97° and 49°. What is the third angle?
Answer: 34°
Tip: The three angles add up to 180°.
Print a worksheet of this skill New questions and an answer key, free.
Up next
- Next in this topic Find x from the angles of a triangle Class 10
Curriculum
Common Core: HSG-SRT.C.8, HSG-CO.C.10
Print a free worksheet with answers (20 questions).
Practise without limits
Members practise as much as they like, every day, and get the printable packs and lessons too.