Question

Determine o valor dos ângulos nos triângulos a seguir.

a)

X
X
X


b)

2x. 90°

3c

Answer 1

Resposta:

3x+a=9a3x=9a−a3x=8ax=38a

2)

\begin{gathered}2x+3c=x+5c \\ \\ 2x - x = 5c - 3c \\ \\ x = 2c\end{gathered}2x+3c=x+5c2x−x=5c−3cx=2c