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3 years ago

Find the value of x within the triangle

Mathematics

1 answer:

Allushta [10]3 years ago

4 0

Answer:

68.46

Step-by-step explanation:

In order to find the angle, we can use the cosine rule:

c²=a²+b²-2abCos(c)

And rearrange for Cos(c)

(please note that c in this case is x)

So,

x=Cos^(-1) (a²+b²-c²)/2ab

By substituting the values, we get x=Cos^(-1)(4²+4²-4.5^2)/2(4)(4)

=68.46

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The number of tickets sold on Friday were 66 children tickets and 97 adult tickets.

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An equation is an expression that shows the relationship between two or more numbers and variables.

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