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patriot [66]
2 years ago
14

If angle c=60° , b=5 ,a=4 then find the value of the c ?​

Mathematics
1 answer:
Lyrx [107]2 years ago
5 0

Answer:

c=sqrt21

Step-by-step explanation:

angle c is the angle between a and b, so use the cos law

c^2=a^2+b^2-2*a*b*cosC

c^2= 16+25-2*4*5*1/2

c^2=21

c=sqrt21

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Step-by-step explanation:

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3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=55%20%5Cfrac%7B6%7D%7B9%3F%7D%20%20%5Ctimes%2066%20%5Cfrac%7B5%7D%7B6%7D%20" id="TexFormula1"
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Answer:

Step-by-step explanation:

If you can present a problem in Latex, you can do anything. I don't know what the question mark is for. I'm just ignoring it.

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One of the ways to get the answer is to use decimals

55.666666667 * 66.833333333 = 3720.38889

Another way to do this problem is to break up one of the numbers

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6 0
3 years ago
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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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