Question

ABC is a triangle right angled at C, AB=13 cm and AC = 5 cm. The length of BC is

Answer 1

Step-by-step explanation:

12 cm

13^2=5^2+bc^2

169-25=144=bc^2

bc = 12

Answer 2

Answer:

12

Step-by-step explanation:

169=25+x2

169-25=x2

144=x2

x or BC=12

by Pythagoras theorem