Question

In: Math

Consider the triangle which has a=4, b=7 and c=8 Find the measure of angles ∠A=, ∠B=...

Consider the triangle which has

a=4, b=7 and c=8

Find the measure of angles ∠A=, ∠B= and ∠C= Give your answer in degrees to at least 3 decimal places.

Solutions

Expert Solution

Step 1)

we know that according to law of cosine,

Hence,

we have a = 4, b = 7 and c = 8 hence,

Hence,

rounding to the three decimal places we can say that,

Step 2)

we know that according to law of cosine,

Hence,

we have a = 4, b = 7 and c = 8 hence,

Hence,

rounding to the three decimal places we can say that,

Step 3)

we know that according to law of cosine,

Hence,

we have a = 4, b = 7 and c = 8 hence,

Hence,

rounding to the three decimal places we can say that,


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