Mathematics
Grade 5
15 min
Find the unknown angle in triangles and quadrilaterals
Find the unknown angle in triangles and quadrilaterals
Tutorial Preview
1
Find the missing angle in a triangle with angles 60° and 50°.
2
Find the missing angle in a right triangle with one 40° angle.
3
A quadrilateral has angles 100°, 80°, and 90°. Find the fourth angle.
Sample Practice Questions
Easy
A triangle has two angles of 60°. What is the third angle?
0.60°
1.120°
2.30°
3.180°
Easy
A triangle has angles of 100° and 40°. What is the third angle?
0.40°
1.140°
2.50°
3.180°
Easy
A right triangle has one angle of 30°. What is the other angle?
0.60°
1.120°
2.90°
3.70°
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