Home
Class 10
MATHS
A 1.6m tall girl stands at a distance...

A 1.6m tall girl stands at a distance of 3.2m from a lamp-post and casts a shadow of 4.8m on the ground. Find the height of the lamp-post by using (i) trigonometric ratios (ii) property of similar triangles.

Text Solution

AI Generated Solution

Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • REAL NUMBERS

    RD SHARMA|Exercise All Questions|180 Videos

  • STATISTICS

    RD SHARMA|Exercise All Questions|230 Videos

Similar Questions

Explore conceptually related problems

A 1.6 m tall girl stands at distance of 3.2 m from a lamp post and casts shadow of 4.8 m on the ground, then what is the height of the lamp post?

If a 1.5 m tall girl stands at a distance of 3 m from a lamp-post and casts a shadow of length of 4.5 m on the ground, then the height of the lamp-post is (a) 1.5 m (b) 2 m (c) 2.5 m (d) 2.8 m

Knowledge Check

  • If a 1.5 m-tall girl stands at a distance of 3 m from a lamp-post and casts a shadow of length 4.5 m on the ground, then the height of the lamp-post is

    A
    `1.5 m`
    B
    `2m`
    C
    `2.5 m`
    D
    `2.8 m`

  • A vertical pole 6 m log casts a shadow of length 3.6 m on the ground. What is the height of tower which casts a shadow of length 18 m at the same time?

    A
    `10.8 m`
    B
    `28.8m`
    C
    `32.4m`
    D
    30m

    • Similar Questions

    Explore conceptually related problems

    A boy 1.5m tall standing from a lamp at a distance of 3m. The lamp casts a shadow of 4.5m. Find the height of the lamp.

    A pole of height 6 m casts a shadow 2sqrt3 m long on the ground. Find the sun's elevation.

    A tree 6m tall casts a shadow 4m long.At the same time if a tower casts the shadow 10m long then find the height of the tower.

    An electric pole casts a shadow of length 20 m at a time when a tree 6 m high casts a shadow of length 8 m. Find the height of the pole.

    A pole cast a shadow of length 2sqrt3 m when sun's elevation is 60^@ Find the height of the pole

    A tree 6 m tall casts a shadow of length 4 m.At the same time a flag casts a shadow of length 50 m.Find the length of the pole

    Home
    Profile