Question

Dos ángulos complementarios se diferencian en 18°.¿Cuánto mide el mayor?.

Answer 1

A + B = 90

x + (x -18) = 90
x+x-18 = 90
2x = 90 + 18
2x = 108
x =108/2
x = 54

A = 54
B= 54 - 18 = 36

Answer 2

A+B=90°
A=x
B=x+18
x+(x+18)=90
2x=90-18
x=72/2=36
A=36°
B=36+18
B=54
comprobación; A+B=90. 36+54=90
90=90