Question

ABC is a right-angled triangle. AC = 6cm. AB = 20cm. Calculate the length of BC. Give your answer correct to 1 decimal place.

Answer 1

Answer:

19.1cm

Step-by-step explanation:

Given:-

AB=20

AC=6

BC=?

So,by Pythagoras Theorem:-

AC2=AB2+BC2

Therefore:-

AB2-AC2=BC2

400-36=BC2

√364=BC2

19.1=BC2