Question

in triangle ABC angle B is 90 degree .if length AB=5cm , length AC =10 cm then angle A is_____.( show with appropriate steps to be marked as the brainliest!)​

Answer 1

In ΔABC, <B = 90°

= AB = 5cm

= AC = 10cm

= Sin θ = 5/10 = 1/2

= <BCA = sin^{-1}sin

−1

(1/2) = 30°

= <BCA = 30°

= <BAC = 90° - <BCA (30°)

= <BAC = 90° - 30° = 60°

= <BAC = 60°

∴ <BCA = 30° and <BAC = 60°

Answer 2

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