Question

3) What is the height of the wall where the
ladder touches the wall if the ladder is 2.5 m
long makes an angle of 60° with the ground? |
ਕੰਧ ਦੀ ਉਚਾਈ ਕਿੰਨੀ ਹੈ ਜਿਥੇ ਪੌੜੀ ਕੰਧ ਨੂੰ ਛੂੰਹਦੀ ਹੈ ਜੇ ਪੌੜੀ 2.5
ਮੀਟਰ ਲੰਬੀ ਹੈ ਅਤੇ ਜ਼ਮੀਨ ਦੇ ਨਾਲ 60 of ਦਾ ਕੋਣ ਬਣਾਉਂਦਾ ਹੈ?
26 ॥​

Answer 1

Answer:

The length of the ladder is 5 m.

Step-by-step explanation:

To find:

The length of the ladder whose foot is 2.5 m away from the wall.

Given:

Distance between the wall and the foot of the ladder = 2.5 m

The angle of elevation is “60°"

Let the length of the ladder is L. The angle of elevation is 60

By using cosine formulae

The length of the ladder will be,

Therefore, the length of the ladder is 5 m