Mathematics for IGCSE & O level - Pythagoras' Theorem And Trigonometry (Section 6 - No. 3)
A triangle has sides of 3 cm, 4 cm, and 5 cm. This is a right-angled triangle. What is the measure of the angle opposite the longest side?
30 degrees
45 degrees
60 degrees
90 degrees
Explanation
In a right-angled triangle, one angle is always 90 degrees.
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