Question

in a right triangle ABC,
angle B=90°,
if ab=13cm,bc=5cm,find ab.
and if ac=13cm,bc=5cm,find ab​

Answer 1

Answer:

In first case ab=13cm and in second case ab=12cm

Step-by-step explanation:

First case

Given:-

AB=13cn,BC=5cm

To find:AB

AB=13cm

Second case

Given:-

AC=13cm,BC=5cm

To find:-AB

AC^2=AB^2+BC^2

(13)^2=AB^2+(5)^2

169=AB^2+25

169-25=AB^2

144=AB^2

AB=root144

AB=+_12

AB not equal to - 12cm (distance is not negative)

AB=12cm

Answer 2

Answer:

AB=13

AC=12

Step-by-step explanation:

H²=B²+P²

13²=5²+AB²

AB²=13²-5²

AB²=169-25

AB²=144

AB=12