Number
Number

Statistics and Probability
Statistics and Probability

Algebra
Algebra
Geometry and Measures
Mock Exams

4.2 TRIANGLES

Name the following type of triangle and calculate the missing angle.
1.
Triangles_Q1
Right Angled Triangle
180° = 90°+60°+a a = 180°90°+60° a = 30°
2.
Triangles_Q2
Isosceles Triangle
180° = 30°+2a a = 180°30° 2 a = 25°

Information

Remember the angles in a triangle add up to 180° and keep your eye on the type of triangle and apply what you know.

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