Question

Exercițiul 3 !! URGENT! ​

Answer 1

a)

m(∡A₁)+m(∡A₂)+m(∡A₃)+m(∡A₄)=360°

m(∡A₁)=m(∡A₃)=110°

m(∡A₂)=m(∡A₄)=(360°-m(∡A₁)-m(∡A₃))/2=(360°-110°-110°)/2=140°/2=70°

b)

m(∡A₁)+m(∡A₂)+m(∡A₃)+m(∡A₄)=360°

m(∡A₂)=m(∡A₄)=45°

m(∡A₁)=m(∡A₃)=(360°-m(∡A₂)-m(∡A₄))/2=(360°-45°-45°)/2=270°/2=135°