πagarwalmath · 5th grade · Florida B.E.S.T. MA.5.GR.1.1
🔺 Kinds of triangles
Name triangles by their sides and angles
Name: ______________________Date: ____________
1Two angles of a triangle are 35° and 30°. What is the third angle?
Answer: ______________ °
2Two angles of a triangle are 90° and 70°. What is the third angle?
Answer: ______________ °
3Two angles of a triangle are 80° and 50°. What is the third angle?
Answer: ______________ °
4Two angles of a triangle are 55° and 90°. What is the third angle?
Answer: ______________ °
5Two angles of a triangle are 65° and 40°. What is the third angle?
Answer: ______________ °
6Two angles of a triangle are 55° and 60°. What is the third angle?
Answer: ______________ °
7Two angles of a triangle are 90° and 60°. What is the third angle?
Answer: ______________ °
8Two angles of a triangle are 90° and 30°. What is the third angle?
Answer: ______________ °
9Two angles of a triangle are 50° and 20°. What is the third angle?
Answer: ______________ °
10Two angles of a triangle are 85° and 70°. What is the third angle?
Answer: ______________ °
11Two angles of a triangle are 70° and 20°. What is the third angle?
Answer: ______________ °
12Two angles of a triangle are 40° and 20°. What is the third angle?
Answer: ______________ °
Answer key: Kinds of triangles
- 1. 115 °
- 2. 20 °
- 3. 50 °
- 4. 35 °
- 5. 75 °
- 6. 65 °
- 7. 30 °
- 8. 60 °
- 9. 110 °
- 10. 25 °
- 11. 90 °
- 12. 120 °
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/5th-grade/shape-triangles