Question

calcule e verifique se os triângulos a seguir são equiláteros

Answer 1

A) 2x+40+3x+30+x+50=180=> 6x=60=> x=60/6=> x=10
então 2.10+40= 60°, 3. 10+30=60°, 10+50=60°

B) X+20+2X+30+X+50=180=> 4X=80 => x=80/4 x=20
então 20+20=40°,2.20+30=70°, 20+50=70°

C) x+35+2x+15+3x+10=180=> 6x= 120 x=120/6=> x=20
então 20+35=55°,2.20+15=55°,3.20+10=  70°

D) 4x+3x+15+x+45=180=> 8x= 120 x=120/8 => x=15°
então 4.15=60°,3.15+15=60°,15+45=60°