Jika garis AP = 4 cm,garis BQ = 2 cm,dan garis PQ = 10 cm,tentukan panjang garis singgung AB

Diketahui =
ap = 4 cm
bq = 2 cm
pq = 10 cm

Ditanya = AB ?
Ab2 = pq2 – (ap + bq) 2
= 102 – (4+2) 2
= 102 – 62
= 102 – 36
Ab2 = 64
Ab = /64
= 8 cm