Jonah tore the angles off a large paper triangle. Then he arranged the three paper angles with their points together so that there were no gaps and no overlaps. What kind of angle did Jonah form? A. acute angle

B. right angle

C. obtuse angle

straight angle

The answer is A. Straight angle

answer: option a.

step-by-step explanation:

you know that the quadrilateral opqr ( a four sided figure) is inscribed in circle. this means that all its vertices are on the circle.

then, by definition, the opposite angles of the quadrilateral are supplementary, this means that the sum of their measures is 180 degrees.

you can observe in the figure that the angles ∠opq   and the angle ∠orq   are opposite, therefore:

then, can be used to d to calculate the measure of ∠opq