Question

If BD* is diameter, then triangle BCD is a (blank) triangle.

Answer 1

the answer is right, a corner of a paper is 90* if you try it the angle is 90*

Answer 2

The word to fill in the blank is "right".

Given that BD is a diameter, the triangle BCD is inscribed in a semicircle, which implies that the ancle C is 90°. All triangles inscribed in a semicircle are right triangles.