Mathematics for IGCSE & O level - Pythagoras' Theorem And Trigonometry (Section 2 - No. 40)
Which of the following statements is true about the angles in a right-angled triangle?
All angles must be equal.
The sum of the angles is 180 degrees.
One angle is always 90 degrees.
Both B and C
Explanation
The sum of angles in a triangle is 180 degrees, one angle in a right triangle is always 90 degrees.
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