f 4 angles of elevation @@

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ANGLES OF ELEVATIONANGLES OF ELEVATIONAND DEPRESSIONAND DEPRESSION


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Learning OutcomesLearning OutcomesDetermine

a) Angle of elevation) Angle of !e"ression

Fin!a) #eig$ts

) Distance


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Do %ou &no' '$at is t$e $ig$est mountain

in t$e 'orl!( *ount Everest

+$at is it,s $eig$ts(

+$at is t$e instruments to measuringt$e $eig$ts(

-.-/- meter 01.20- &a&i

Se3tant Teo!olit


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o 4ect

L i n e o f s i g $ t

#ori5ontal line

36

7 is an angle ofelevation of t$e

o 4ect from t$eman


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L i n e o f

s i g $ t

#ori5ontal line

%6

8 is an angle of!e"ression of t$eo 4ect from t$e

$elico"tero 4ect


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9oastguar!

:oat

2

%6

%6is an angle of elevation of t$e

coastguar! from t$e oat


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#OT TIPS#OT TIPS


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#OT TIPS#OT TIPS


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KERJA KUMPULANKERJA KUMPULAN


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Let say you as a hiker walking down from the topLet say you as a hiker walking down from the topof the mountain. At one sight you !ould o"ser#e aof the mountain. At one sight you !ould o"ser#e a

peak of another mountain and "elow you !ouldpeak of another mountain and "elow you !ouldsee a hut. $an you please identify and des!ri"esee a hut. $an you please identify and des!ri"e

ea!h angles as it relates to situation a"o#eea!h angles as it relates to situation a"o#e ..


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Angle ? is t$e angle ofAngle ? is t$e angle of

fromfrom

!e"ression!e"ression of t$eof t$e $i&er$i&er

t$et$e "ea&"ea&

Angle 0 is t$e angle of elevationelevation of t$eof t$e "ea&"ea&

from t$efrom t$e $i&er$i&er

Insert t$e 'or! "ea&. $i&er . $ut. elevation . !e"ression in t$e lan&


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Angle @ is t$e angle ofAngle @ is t$e angle of

fromfrom

!e"ression!e"ression of t$eof t$e $ut$ut

t$et$e $i&er$i&er

Angle / is t$e angle of elevationelevation of t$eof t$e $i&er$i&er

from t$efrom t$e $ut$ut

Insert t$e 'or! "ea&. $i&er . $ut. elevation . !e"ression in t$e lan&


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%hink&Pair&'hare

https://www.teachervision.com/group-work/cooperative-learning/48547.html


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Latihan ( %hink Pare 'hare)Latihan ( %hink Pare 'hare)

* Muka surat +,+

* No +a* +"* +!

G#E FE#B*C B*L

SP SR


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Fin! t$e angle of elevation of P from = 36

P

/26

36

36 = 26+$ere isangle 3(

R


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P

┐

@cm

/ cm36

Tan 36 =@/

36=@ H- 6

9alculate t$e angle of elevation of P from = 36

R


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Fin! t$e angle of !e"ression of : from AFin! t$e angle of !e"ression of : from A

a)A

:

E

6

0 69


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Fin! t$e angle of !e"ression of : from AFin! t$e angle of !e"ression of : from A

:

A

06

@-6J 9


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9alculate t$e angle of !e"ression of : from A =9alculate t$e angle of !e"ression of : from A = 3636

:

J A/ cm

- cm

3636

Tan 3636 == -/

3636 == @H/@°

9


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KERJA KUMPULANKERJA KUMPULAN ( 15 minit)

*ENGIRA TINGGI TIANG :ENDERA

La&ar&an ra4a$ agi mengira tinggi tiang en!era

An!a !i e&al&anK

?HTero"ong0HPem aris ?m@H+$ite oar! mar&er

http://teropong.docx/http://teropong.docx/http://teropong.docx/


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#asil &er4a &um"ulan


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Soalan B at


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River

Notice :oar!

*alacca state scouts 4am oree %ear 02?@ 'as $el! at #utanRe&reasi A%er &ero$ H Ever% scouts grou" are reMuire! to uilt atent at t$e o""osite si!e of t$e notice oar! on t$e ot$er si!e of

t$e riverH T$e% s$oul! cross t$e river efore H22 "mHDiscuss in %our grou". calculate t$e river,s 'i!t$HGive %our e3"lanation


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P

T

R // cm 10 cm

In t$e !iagram a ove. P. D . an! R are t$ree "ointson a $ori5ontal "laneHTD is a vertical "oleHTP an! TR are t'o strings tig$tene! at P an! R

9alculateKcalculate t$e $eig$ts of TD t$e angle of elevation of verte3 T from "oint P

uestion ?K

?? cm


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A clim er is sitting on t$e summit S of a mountainH #e loo&s !o'nan! see $is car 9 in t$e valle% elo'H T$e !irect !istance from t$esummit to t$e car is ?/22mH t$e angle of elevation of t$e summit Sas seen from t$e car is ? H@ 29alculate t$e $eig$t of t$e mountain

S

1400m

C


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Ber4a ruma$

*u&a surat ?00 !an ?0@

0 a 4


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Terima Basi$

f 4 angles of elevation @@

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