Question

If ∠T is inscribed in a semicircle, then the measure of angle T is_____ degrees.

A)180
B)0
C)360
D)90

Answer 1

the answer is 90. I just got this question graded 

Answer 2

Option D) 90°

Explanation:

It is given in a circle with center O, triangle TBC is formed in a semicircle.

We know If ∠ O is the angle formed at center, ∠T will be half of the measure of central angle O. (inscribed angle conjecture)

∠ T =
`(1)/(2)` of ∠O

=
`(180)/(2)=90`

Therefore, measure of the angle inscribed in a semicircle will be 90°

Option D). 90° is the correct option.