Respuesta :

strawberry99
3x + 2x = 90 {the two angles add up to 90°}
5x = 90 {combined like terms}
x = 18 {divided both sides by 5} 

angle 1 = 3x
= 3(18) {substituted 18, in for x, into 3x}
= 54° angles add up to 90° 

angle 1 = 3x
angle 2 = 2x