BC = 5cm AC +AB= 25cm ----- (1) We know that AC² = AB² + BC² From (1) AC = 25 – AB Or, AC² = (25 – AB) ² Put this value in formula (25-AB)² = AB² + BC² 625 + AB² - 50AB = AB² + 25 652 – 50AB = 25 -50AB = 25 – 625 50AB = 600 AB = 12cm Now AC+AB = 25 Than AC + 12 = 25 AC = 25-12 AC = 13cm Now We have AC = 13cm AB = 12cm & BC = 5 cm
BC = 5cm
ReplyDeleteAC +AB= 25cm ----- (1)
We know that
AC² = AB² + BC²
From (1)
AC = 25 – AB
Or, AC² = (25 – AB) ²
Put this value in formula
(25-AB)² = AB² + BC²
625 + AB² - 50AB = AB² + 25
652 – 50AB = 25
-50AB = 25 – 625
50AB = 600
AB = 12cm
Now AC+AB = 25
Than AC + 12 = 25
AC = 25-12
AC = 13cm
Now We have
AC = 13cm
AB = 12cm &
BC = 5 cm