Question

determine a medida de X nos ângulos complementares:​

Answer 1

a) 12+x=90

x=78°

b) 3x+15=90

3x=75

x=25°

c) 20+2x=90

2x=70

x=45°

d) 49+(x+12)=90

x= 29°

e) (x+10)+(x+12)=90

x=68°

f)2x+3x=90

x=90-5

x=85°

g) (x+20)+25=90

x=45-90

x=45°

h)40+5x=90

x=90-45

x=45°