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Scanned by CamScanner 5 2 79 = c o s A � 国 田 旨 2 . 益 驻 - L Sz Z S z - 1 33 z _ _ 2 s . 2 ( . Os Å S \ n B z Æ Qg ” " " 一 套 ı 歹 一 二 ) L C o s ス ― ― 下云 一 1 二 l t łų = lq{P+l - 2 5 2 ( . % A ln ó z ı Į t s in s tr · lq t ł b I Z ı = H Ï t + q Z - 2 . ı · ì c os A \Z 1 Ł 6 k = 3 1 . S - 1 l2 @ a 2 = b ı + C ' _ 2 b (. C os A � S i n f ? Ý · ı ųų I _ S ın 6 _ � IW - 5 8 . ı t l ų { ? - %2 . 2 2 5 . a = 12 , b = 1 4 , c = 9 bı 3 2 . % 7 1 7 s in a r s 1n A ı _ ( p5 - S ( pcos ç s Ç . - 11 4 \ Ç . Ų ı b ļ IU Ł t } q - S t ı coss Ų si n SS = S % L Ł \ ) V t t " +7 2 . Ł t · T C os S S ' I ' ' S ' , 73l z q o . I b °- a t +c a 2a c c o s o @ s r n a_ s . i n g s Ŭ l% o - 5 5 - 3 1 . % ų ņ � � 4 . a = 4 , c = 7 , < B = 5 5 ° N O ıh qı cï a + 5 a ll Sl c les a Ť e ñ of ĵ r � ľ h m 3 r d n Łu N O T H W I c 3 . a = 9 , b = 3 , c = 5 F i n d a ll m is s in g s id e s ar ansl§ ° . ' X = St * + - 1 . - 1 %1 m 12 o o s m 3 5 fjraT î j - S b ų ı . ı% ł f f s l n ų z ) S i n t lz z j th e a n g le o f e le v a tio n a s 4 2 호 . ı 80 - Ų 2 . Tú 3s - 5 2 . m s ė · C S . ł2o l ? = t ł 7 5 ' + Sqs 2 ( t ł 75 · 5 ą s )cosA S ï n l2 . 18 3 S . . W r e s o f th e an g le s b e tw e e n th e s id e s , t o t h e n e a re s t te n th o f a de g ree? . 1 . A tria n g ular p la yg ro u n d h a s s id e s o f le n g th s 4 7 5 fe e t , 5 9 5 f eet , a n d 4 0 1 f eet . w h at T e s t R e view - La w o f C o sin e s 트 · I
Transcript of new doc 29cssilvestri.weebly.com/uploads/3/8/1/8/38182231/... · l h a t t h e aT o w e r w s le a...
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o s A �
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2 s.
2 (. O s Å
S \ n B z Æ Q g
” " "一
套 ı 歹
一
二 ) L C o sス
― ―
下云一
1 二
ltłų = lq{P+l - 2 5 2 (. % A l n ó z ıĮ t s i n s tr · lq tłb
IZ ı
= H Ï t
+ q Z
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-
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N O ıh
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a l l S lcle s a Ťe ñ o f ĵ r � ľ h m 3 rd n Łu
N O T H W Ic
3 . a = 9 , b = 3 , c = 5
F in d a ll m is s in g s id e s a r ansl§ °
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-
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th e a n g le o f e le v a t io n a s 4 2 호.
ı 80 - Ų 2 . Tú 3 s - 5 2 . m s ė · C S . ł2o l
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.. W
r e s o f th e a n g le s b e tw e e n t h e s id e s , t o t h e n e a r e s t t e n t h o f a d e g r e e ?.
1 . A tr ia n g u la r p la y g r o u n d h a s s id e s o f le n g t h s 4 7 5 fe e t, 5 9 5 fe e t , a n d 4 0 1 fe e t . w h a t
T e s t R e v ie w - La w o f C o s in e s
트 ·
I
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s n o w b o a rd in g ru n b e ?
a n d h e m t h e b a s e o f t h e m o u n t a in . H o w lo n g w ill h is
d e p re s s io n to t h e b o t to m o f t h e m o u n t a in is 6 6 . 7 °
. T h e m o u n t a in is 3 6 0 0 fe e t o ff t h e g ro u n d
5 . A n t h o n y is s n o w b o a rd in ß in V e r m o n t . W h e n A n t h o n y is a t t h e t o p o f t h e m o u n t a in , h is a ng
l e o f
+ a n tło . + ( m 3 ò
= X 2 9 , b J
, m
X · 碼 卄入· \. 2 田 不虱
fa r a w a y is E lpin ą ! ro m t h e b o t to m o f t h e E m p ire S t a t e b u ild in g ? C o n v e rt t h is t o m ile s (5 2 8 0 t r =
2 3'd
a n d 5th
. T h e a n g le o f e le v a t io n w h ic h E la in a is s e e in g t h e E m p ire S t a t e b u ild in g is 1 2 . 9 °
. H o w
T h e E e B u ild in g is 1 4 5 4 fe e t ta ll to t h e v e ry t o p . Ela in a is a t E a t a ly o n t h e c o r n e r o f3 .
to w e r is w a s 5 6 . 1 1 m e t e rs . W h a t is t h e le a n o n t h e L e a n in g T o w e r o f P is a ?
to p o f t h e to w e r 9 0 °
), it w a s 5 5 . 8 6 m e t e rs . Fro m t h e b o t t o m o f t h e t o w e r t o t h e t o p o f t h e
to w e r , s h e w a n t e d t o f ig
u r e o u t t h e a ng
l e t h a t t h e T o w e r w a s l e a n i ng
. F ro m t h e g ro u n d t o t h e
2 . A le x a w a s t ra v e llin g it a ly a n d w a n t e d t o s e e T h e L e a n in ß T o w e r o f P is a . W h e n t h e g o t to t h e
r q m )T o w e r ?
Ĺ .
a n g le o f e le v a t io n f ro m t h e g ro u n d to t h e to p o f t h e E ife l T o w e r w a s 6 8 . 6 °
. H o w ta ll is t h e E ife l
1 . D o n n a w a s in P a r is s t a n d in B o n t h e la w n in f ro n t o f t h e E ife l T o w e r . S h e w a s 3 8 5 ft a w a y a n d t h e
T e s t R e v ie w - R lßh t T ria n B le s
