Circles with centre at O and P intersect at X and Y.
Prove
B
P
Y
=
A
O
Y
Sydney Grammar 2003
Western Region 2003
Abottsleigh 2004
ARC 2004
Darlinghurst 2004
Independent 2004
Knox Grammar 2004
Scots 2004
Kings 2004
Unknown
Baulkham Hills 2007
1999 SBHS
Baulkham Hills 2004
Baulkham Hills 1998
MLC 2006 (y11 final)
ABC is a right angle triangle with a perimeter of 15 cm. The
inscribed circle (circle tangent to the triangle on all three
sides) has a radius of 2. Find the perimeter of the triangle.
