Question

a ladder leaning a vertical wall makes an angle of 45° with the ground the foot of the ladder is 3m from the wall. find the length of the ladder​

Answer 1

Answer:

LET AB be the wall

CB be the ladder

AC= 3cm ( given )

<ACB=45

NOW,CB/AC=sec45=root2

=CB/3

length=CB=3root 2

then,3×1.41 = 4.23 is the answer

HOPE IT HELP

I WOULD REALLY APPRECIATE IF YOU MARK ME BRAINLIEST.....

Answer 2

⚛ θ = 60° ⚛

Let the angle we need to find be θ

By the given information ,

• ♦ Adjacent side of θ = 1.5 m
• ♦ Hypotenuse of triangle = 3m

So , using cos trigonometric ratio ,

• => cosθ = 1.5/3

• => cosθ = (3/2)/3

• => cosθ = 3/2 × 1/3

• => cosθ = 1/2

Substituting , 1/2 = cos60°

• => cosθ = cos60°

By comparing ,

=> θ = 60°

Note:-

• Required Diagram is in attachment !