The angle subtended by a diameter is a right angle. That's Thales' Theorem (one of them anyway), sometimes thought to be the first theorem of geometry.
So the first choice is true.
The other angles are complementary, not necessarily congruent.
The sides and arcs aren't necessarily congruent either
Answer: first choice
9.6 but that’s not possible.
hope it helps x
3x + 4 < 40
This is my answer
You plug in the numbers to the equation A2+B2=C2