Year 8 Maths
Angles and Parallel Lines
Angle and Parallel Line Checkup
Line and Rotational Symmetry
Angle Sum of a Triangle
Missing Triangle Angles
an equilateral triangle has three congruent sides, and therefore has three congruent angles. Because the interior angles of an equilateral triangle each equal 60°, there are no obtuse angles (an angle that is greater than 90°).
continue learning about triangle classifications.
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