Answer:
Yes.
Step-by-step explanation:
Yes.
A quater of 72 is 18. So 18 + 72 =90. A tenth of 90 is 9 so... 90 - 9 = 81
7.2 * 10^−3 is how you would write 0.0072 in scientific notation
Consider the figure attached.
Let m(R)=α degrees and m(T)=β degrees.
1.
Angle R, is an inscribed angle, intercepting the arc WTS.
This means that the measure of the arc WTS is double the measure of the angle R,
so m(arc WTS) = 2α degrees.
2.
Similarly,
Angle T, is an inscribed angle, intercepting the arc WRS. So
m(arc WRS) = 2β degrees.
3.
m(arc WTS)+m(arc WRS)=360° since these arcs cover the whole circle.
thus
2α+2β=360°
divide by 2:
α+β=180°
this means T and R are supplementary angles.