Question

7. In A ABC, m ZA=90°. What is the sum of the measure of the other two angles B and C ?
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Answer 1

Answer:

Step-by-step explanation:

In ΔABC,

∠A + ∠B + ∠C = 180° (Angle sum property of a triangle)

90°+ x + x = 180°

90°+ 2x = 180°

2x = 90°

x = 45°

∴ ∠B = ∠C = 45°

∴∠B+∠C= 90°