wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

A ladder 13m long rests against a vertical wall. If the foot of the ladder is 5m from the foot of the wall, find the distance of the other end of the ladder from the ground.

A
12m
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
24m
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
6m
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
36m
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is A 12m
Consider the ladder wall system as a right-angled triangle such that length of ladder rested on the wall being the hypotenuse (H), the distance between the foot of the wall and the ladder being the base (B) and length of the wall up to the ladder being the perpendicular (P)

now, given, H = 13 m, B = 5m
Thus, H2=P2+B2 (by Pythagoras theorem)
132=P2+52
P2=144
P=12 m
Thus, the distance between the foot of the wall and the ladder is 12 m

flag
Suggest Corrections
thumbs-up
3
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Pythogoras Theorem
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon