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T

s N

θ 

M

Q LINE SQ AND PLANE SMTN

ORTHOGONAL PROJECTION

OF LINE SQ ON PLANE SMTN

= LINE ST

SO ANGLE QST

Example:

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T

s N

θ 

M

Q

Garis SQ d! sa"a# SMTN

$AEDAH POTONG

Example:

S Q

S M T N

 Q_ S__T_ 

1. POTONG YG

  SAMA DAN

LETAK

DI TENGAH2. YG TINGGAL

DIDEPAN 3.DARI Q KE TAK POTONG

CARI YG PALING DEKAT. - QT

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P

S

T

%

R

Q

&

' CM

(  )   * m 

Diaram s#+,s a ri#" prism- T#e .ase PQRS is a #+ri/+!"al

re*"a!le- Ri#" a!led "ria!le QR% is 0!i1+rm *r+ss2se*"i+!

+1 "#e prism- & is "#e mid2p+i!" +1 PS-

Ide!"i13 a!d *al*0la"e "#e a!le .e",ee! "#e li!e %& a!d "#epla!e RST%- Spm )445

0 ''

8tan

13

  = 31 36

θ   =

  1   6   c  m

(6

&

S %

7

θ 

U V

RSTU V U S

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AM S%D%TMAE

A

E

M

θ 

8

('

ADEF

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θ 

A

G

F

E

D

C

9

H

I

STEPS : (- POTONG G SAMA

)- G TINGGAL E; F 2 DIDEPAN

6- E $E G POTONG 2 C < D

EFCD A9CD

E D A F C 9

8- E $E G TA$ POTONG 2 A

< 9

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θ 

N

E

D N

'

-' *m

θ 

AEC

A9CD

E DEPAN

5tan

6.5

  = 37.57

θ   =

EA = EC

  E N D

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SPM )44>

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?a@Nama "#e a!le

.e",ee! "#e pla!e

9CJ a!d "#e .ase

A9CD

?.@Cal*0la"e "#e a!le

.e",ee! "#e pla!e

9CJ a!d "#e .aseA9CD-

D

(- :

)-9CJ

SPM )44>

8

A9CD

  J 9 A

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SLN SRMN

L N M

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  LNM

"a! LNM = +r e0iBale!"

 6-75+  +r 6+ ')

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(! M"#$%& A')% *%+,%%' CHG "'& ACD

(! C")c)"+% +/% "')%

20'51or34.51

45ABGTan

oo=

=∠

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=

=∠10

6 DCETan(b)

ECD/DCE(a)

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K%0)""' P%)""#

("! T&"$ m%'"'&" 0&+ 4 m%'5"+"$"' 0&+

(*! T&"$ 0%m%0+'5" m%''"$"' T"'.

(c! P%'#""' 00 5"' 0")"/

 

(&! M%m*)"+$"' 6",""'.

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0m2711

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