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If one of the acute angles of the right-angled triangle is 55°, what is the measure of the other acute angle? 

If one of the acute angles of the right-angled triangle is 55°, what is the measure of the other acute angle?  Correct Answer 35°

Concept:

Sum of all the three angle in a triangle = 180°

In right angle triangle one angle = 90°

Calculation:

Out of three one angle is 90°

⇒ (180° – 90°) = 90°

Second angle = 55°   ------ (given)

∴ (90° – 55°) = 35°

∴ Other acute angle is 35°

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