Mathematics
Grade 6
15 min
Find missing angles in triangles
Find missing angles in triangles
Tutorial Preview
1
A triangle has angles of 50° and 70°. What is the third angle?
2
A right triangle has one angle of 30°. What is the other small angle?
3
An isosceles triangle has one angle of 80°. The other two are equal. Find them.
Sample Practice Questions
Easy
A triangle has angles of 60° and 40°. What is the third angle?
0.80°
1.90°
2.100°
3.120°
Easy
Two angles in a triangle are 100° and 30°. Find the third angle.
0.40°
1.50°
2.60°
3.130°
Easy
Find the missing angle in a triangle with angles of 50° and 50°.
0.50°
1.80°
2.90°
3.100°
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