Question 157 (i)
The foot of a ladder is 6 m away from its wall and its top reaches a window 8 m above the ground
Find the length of the ladder.
Let the length of the ladder be x m
In right angled ΔABC,
AC2=AB2+BC2 [by Pythagoras theorem]
⇒(x)2=(8)2+(6)2⇒=√(8)2+(6)2=√64+36=√100⇒x=10 m
Hence, the length of the ladder is 10 m