IN THE FIGURE BELOW, PT TOUCHES A CIRCLE WITH CENTRE O AT R. DIAME...

7. - ĐỀ THI OLYMPIC TOÁN TMO VÒNG CÁ NHÂN
Toán ĐỀ THI OLYMPIC TOÁN TMO VÒNG CÁ NHÂN

7.

In the figure below, PT touches a circle with

centre

O at R. Diameter SQ when

produced meets PT at P. If ∠SPR = x° and ∠QRP = y°, what is the value of

x+2y?

S

O

Q

x

T

P

y

R

Answer :