Question

17) determine a quantos gráus coresponde a medida x em cada triângulo​

Answer 1

a) X+ 73°+26°=180
X=180-73-26
X= 81°

b) X+130=180
X= 180-130
X=50°

c) X+120=180
X=180-120
X=60°

d) X+90=180
X=180-90
X=90°