Answer:
x = 25
Explanation:
Equiangular triangle is also equilateral triangle.
This means their sides are of equal length.
So, AB = BC = AC
Consider AB = BC
3x - 5 = 2x + 20
3x - 2x = 20 + 5
x = 25
Check:
Length of AB = 3x - 5 = 3(25) - 5 = 75 - 5 = 70
Length of BC = 2x + 20 = 2(25) + 20 = 50 + 20 = 70
Length of AC = 4x - 30 = 4(25) - 30 = 100 - 30 = 70