Question

find the side BC of triangle ABC​

Answer 1

13m

(finded by pythagoras theorem)

AC^2 + AB^2 = BC^2

5^2 + 12^2 = BC^2

25 + 144 = BC^2

169 = BC^2

BC=√169

BC=13

(BC^2 means BCsquare)

Answer 2

√169

Step-by-step explanation:

BCsquare =ABsqure +ACsqure

BC square= 144+25

BC = √169