Question

in triangle abc angle a= 55 angle b= 30 find the longest side​

Answer 1

Given : <a= 55'

<b = 30'

<a + <b + <c =180' [ angle sum property of triangle]

55+30+ <c =180

85' + <c =180

<c = 180 ÷ 85

<c = 2.11

Answer 2

The sum of the measures of the angles in a triangle is .

Since you know the measure of two of the angles, it is a simple matter of subtraction to determine the measure of the third angle.

The longest side is opposite the largest angle. So if angle B is, in fact, the largest angle (and you won't know this for sure until you calculate the measure of angle C) then the longest side of the triangle is the segment AC.

You should be able to figure the rest for yourself.

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