Question

In the A ABC, 2B - 90°, AB - 4 cm and BC -3 cm, then tan A-​

Answer 1

Answer:

In triangle ABC

2B -90^°

=B =90/2

Therefore B = 45^°

AB =4 cm and BC = 3 cm

so triangle ABC might be 45 ,45 ,90 degree triangle.

therefore tan (45^°)= 1