autumnpoteet
In ΔPQR, sin P = 0.3, sin R = 0.4 and r = 10. Find the length of p.



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AonZ
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is this a right angled triangle?

autumnpoteet
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No

AonZ
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do you have a diagram or ur trouble is drawing one?

autumnpoteet
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dw:1370194366047:dw

autumnpoteet
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Not a full on triangle , it slants to the right.

Mertsj
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dw:1370140336493:dw

autumnpoteet
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how do i do that...

Mertsj
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Substitute the know values, cross multiply and solve.

Mertsj
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You are given sin P, sin R and r

autumnpoteet
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so i have 0.3/p = sinP/10

Mertsj
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sinP is given to be .3
Replace sin P with .3

autumnpoteet
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i did.dw:1370195180316:dw

Mertsj
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dw:1370141209750:dw

Mertsj
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Cross multiply and solve.

autumnpoteet
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so 10x0.3= 3
what does 0.4 x p = 0.4p ?

Mertsj
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yes

autumnpoteet
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great !

autumnpoteet
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so for the answer do i just put 0.4p?

Mertsj
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To solve this equation:
3=.4p
Divide both sides by .4

autumnpoteet
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okay. 0.4/3 = 0.13
3/0.4 = 0.75

autumnpoteet
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0.4/0.4 = 1

Mertsj
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Better check your decimal point

autumnpoteet
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7.5

Mertsj
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yes

autumnpoteet
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so is 7.5 my answer?

Mertsj
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yes