Theorems on Tangents to Circle Properties

Find m<A.

• 63

• 21

• 44

• 85

Triangle ABC is inscribed in circle O. Line AB is a diameter, and the measure of angle ABC is 55°. What is the measure of angle BAC?

• 90^o

• 35^o

• 45^o

• 55^o

What is d?

• 78

• 102

• 117

• 21

and UT are tangents to the circle with centre O. OVT is a straight line. If \angle SVT\ =\ 123\degree, calculate \angle VST

If O is the centre of the circle, find the radius of the circle given that XY = 16cm and OM = 15cm.

Find the value of x.

Find the value of x.