SAT is a tangent to the circle at A. B and C are points on the circle. BÂT=43∘T=43^\circT=43∘. Calculate, with a reason, the size of AĈB.
AB is a diameter of a circle with centre O. C is a point on the circle, and  = 53°. Calculate, with reasons, the size of B̂.
SAT is a tangent to the circle at A. B and C are points on the circle. BÂT=60∘T=60^\circT=60∘. Calculate, with a reason, the size of AĈB.
A, B and C are points on a circle with centre O. AĈB=61∘B=61^\circB=61∘. Calculate, with a reason, the size of AÔB.
A, B, C and D are points on a circle. AĈB=34∘B=34^\circB=34∘. Calculate, with a reason, the size of AD̂B.
A, B and C are points on a circle with centre O. AĈB=54∘B=54^\circB=54∘. Calculate, with a reason, the size of AÔB.
AB is a diameter of a circle with centre O. C is a point on the circle, and  = 59°. Calculate, with reasons, the size of B̂.
AB is a diameter of a circle with centre O. C is a point on the circle, and  = 48°. Calculate, with reasons, the size of B̂.
AB is a diameter of a circle with centre O. C is a point on the circle, and  = 47°. Calculate, with reasons, the size of B̂.
ABCD is a cyclic quadrilateral. Â = 74°. Calculate, with a reason, the size of Ĉ.
SAT is a tangent to the circle at A. B and C are points on the circle. BÂT=45∘T=45^\circT=45∘. Calculate, with a reason, the size of AĈB.
ABCD is a cyclic quadrilateral. Â = 87°. Calculate, with a reason, the size of Ĉ.
