Question

question 2 (5 points)
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a triangle inscribed in a semicircle can be identified as a/an _______ triangle.
a) right
b) obtuse
c) scalene
d) isosceles

Explanation:

According to Thales' theorem, if a triangle is inscribed in a semicircle (where the diameter of the semicircle is one side of the triangle), then the angle opposite that side (the side which is the diameter) is a right angle. A triangle with a right angle is a right - triangle.

Answer:

A. right