a ladder is placed against a vertical tower .if the ladder makes an angle of 30 degree with the ground and reaches up to a height of 15 m of the tower, find the length of the ladder.
Answers
Answered by
0
Answer:
ok
Step-by-step explanation:
⇒ Here, AB is the length of ladder.
⇒ ∠ABC=30
o
and AC=15m
⇒ sin30
o
=
AB
AC
⇒
2
1
=
AB
15
∴ AB=15×2
∴ AB=30m
∴ Length of the ladder is 30m
please give me branist answer
Answered by
11
Given :-
- A ladder is placed against a vertical tower.
- It makes an angle of 30° and reaches up to the height of 15m.
To Find :-
- Length of the ladder.
Solution :-
Let the length of the ladder be 'x'
Angle = 30° , Height = 15 cm
So,
{Perpendicular/Hypotenuse = sin}
→ 15/x = sin 30°
→ 15/x = 1/2
→ x = 30 m
∴ Length of the ladder = 30m.
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