Question

b) m(<A)= 2m(<B) = m(<C)​

Answer 1

Daca sunt unghiuri in triunghi:

m ( < A) + m (<B) + m (<c) = 180°

m ( < A) = 2 m (<B) = m (<C)

2 m (< B ) + m (<B)+ 2 m (< B) = 180 °

5 m (<B) = 180°

m( <B) = 180° : 5

m (< B ) = 36 °

m (<A) = 2 m( <B) = 2 x 36 = 72°

m(<A)=m(<C)=72° ✔

Daca sunt unghiuri in jurul unui punct:

m ( < A) + m (<B) + m (<c) = 360°

m ( < A) = 2 m (<B) = m (<C)

m ( < A) = 2 m (<B) = m (<C)2 m (< B ) + m (<B)+ 2 m (< B) = 360°

5 m (<B) = 360°

m( <B) = 360° : 5

m (< B ) = 72 °

m (<A) = 2 m( <B) = 2 x 72= 144° ✔