Question

in an right angled triangled.B is 90
1-if AB is 6cm ,BC is 7cm.find AC
2-if AC is 13cm,BC is 5cm.find AB

Answer 1

1.By pythagoras theorem
AC*2=6*2+7*2
AC*2=36+49
AC=9.2

2. AB*2=169-25
AB=√144
=12