Question

two equal sides of a triangle are each 4 less than three times the third side find the dimensions of the triangle if perimeter is 55.​

Answer 1

Step-by-step explanation:

Perimeter of a Triangle = Sum of all Sides

So we are taking the third side as x then the two sides are 4 - x and 4 - x (because both angles are same)

Then, x + 4-x + 4-x = 55

= x + 8 - x - x = 55

= -x + 8 = 55

= -x = 55 - 8

= -x = -47

so if the third angle is -47 then other two angles are 4 -(-47) = 4 + 47 = 51