What is the value of c, correct to one decimal place?
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a.4.6

b. 3.2

c. 2.8

d. 1.2

Option (b) is correct.

The value of  c to one decimal place is 3.2

Step-by-step explanation:

Given : A triangle with some measurements are given.

We have to find the measure of side c.

Consider the given triangle ABC,

Using Laws of cosine,

a, b, c are the sides of a triangle and C is the angle opposite to side c.    

then,

So, Taking square root both side, we have,

Here, a = 7 ,

b = 5

and C = 24.63°          

Substitute, we have,

Simplify, we have,

c = 3.22

Thus, The value of  c to one decimal place is 3.2

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step-by-step explanation:

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