Question

Find the size of the angle BAC in the following triangle:


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Answer 1

Length:

Side A = 5 cm

Side B ~9.434 cm

Side C = 8 cm

... Perimeter: ~22.434

... Area: 20

Angle:

Angle ∠A = 32.005°

Angle ∠B = 90°

Angle ∠C = 57.995°

Answer 2

Explanation:

Sin A=5/8=0.625

`A=sin^(-1) (0.625) \approx 36.68 ^\circ \\\approx 36.7^\circ\\\approx 37^\circ`