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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.

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.

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?

A girl of height 90 cm is walking away from the base of a lamp-post at a speed of 1.2m"/"s . If the lamp is 3.6 m above the ground, find the length of her shadow after 4 seconds.

A girl of height 100 cm is walking away from the base of a lamp post at a speed of 1.9 m/s . If the lamp is 5 m above the ground , find the length of her shadow after 4 seconds (in metres )

A girl of height 90 cm is walking away from the base of a lamp-post at a speed of 1.2 m/s. If the lamp is 3.6 m above the ground, find the length of her shadow after 4 seconds.

A girl of height 90 cm is walking away from the base of a lamp-post at a speed of 1.2 m/s. If the lamp is 3.6 m above the ground, find the length of her shadow after 4 seconds.

A girl of height 90cm cm is walking away from the base of a lamp-post at a speed of 1.2 m/s. If the lamp is 3.6 m above the ground, find the length of her shadow after 4 seconds.

A girl of height 90cm is walking away from the base of a lamp-post at a speed of 1.2m/s . If the lamp is 3.6m above the ground,find the length of her shadow after 4 seconds.