what do you need help with?
Sally drew a circle with right triangle PRQ inscribed in it, as shown below: The figure shows a circle with points P, Q, and R on it forming an inscribed triangle. Side PQ is a chord through the center and angle R is a right angle. Arc QR measures 40 degrees. If the measure of arc QR is 40°, what is the measure of angle PQR? 20° 40° 50° 70°
Can we see a picture?
yes, still trying to figure it out.
Gosh, sorry. I've never learned this in math class.
can you help me
i think so
actually i am googling to see what theorem to use
ok this is what i got from google angle P is 20 degrees because it is half of the "intercepted arc" i.e.half of 40
angle R is 90 degrees, it is a right angle
to total for the triangle is 180 so angle Q is 180 - 20 - 90 = 70