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Heights and distances

Jun 19, 2015

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Heights and distances
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Page 1: Heights and distances

WELCOME

Page 2: Heights and distances

ST.THOMAS TRAINING COLLEGE

NAME: VEENA GOPAL V S

REG.NO:13 386 009

Page 3: Heights and distances

HEIGHT AND DISTANCES

USUAL LINE OF SIGHT

ANGLE OF ELEVATION

ANGLE OF DEPRESSION

QUESTION

SOLUTION

CONTENTS

Page 4: Heights and distances

HEIGHTS AND DISTANCES

Page 5: Heights and distances

USUAL LINE OF SIGHT

Page 6: Heights and distances

ANGLE OF ELEVATION

The angle between the usual line of sight and raised line of

sight is called angle of elevation

Page 7: Heights and distances

Usual line

Page 8: Heights and distances

ANGLE OF DEPRESSION

The angle between usual line of sight and lowered line of sight is

called angle of depression

Page 9: Heights and distances

USUAL LINE

Page 10: Heights and distances

QUESTION

The length of shadow of

a tree is 16m, when the sun is at an elevation of

60⁰ . What is the height of tree?

Page 11: Heights and distances

16 m

x

60⁰

A B

C

Page 12: Heights and distances

SOLUTION

tan 60˚ = x ∕ 16

√‾3 = x ∕ 16

X=16 √‾3 m

Height of the tree =16 √‾3 m

Page 13: Heights and distances

THANK YOU........