Question

Please help!

In a right triangle ABC with angle A equal to 90 degrees, find angle B and C so that sin(B) = cos(B).

Answer 1

Right, so, angles B and C are equal in size of 45 degrees.

HTH :)

Answer 2

Oh, this is easy love :)

So, b is the length of the side opposite angle B and c is the length of the side opposite angle C and h is the length of the hypotenuse.

sin(B) = b/h and cos(B) = c/h

sin(B) = cos(B) means b/h = c/h which gives c = b

The two sides are equal in length which means that the triangle is isosceles and angles B and C are equal in size of 45 degrees!

I hope this helps!