Question

va rog ajutati-ma dau 100 de puncte​

Answer 1

Răspuns:

Explicație:A1+A2+A3+A4=360 grade

A1=A2+28 grade

Atunci:

A1=A4(opuse la varf)=A2+28 grade

A2=A3(opuse la varf)

Si inlocuim:

A1+A2+A3+A4=360 grade

A2+28 grade+A2+A2+A2+28 grade=360 grade

4*A2+56 grade=360 grade

4*A2=360-56 grade

4*A2=304 grade

A2=304 grade:4

A2=A3=76 grade

A1=A4=A2+28 grade

A1=A4=76+28 grade

A1=A4=104 grade