Question

In figurile urmatoare este reprezentat cate un triunghi dreptunge. Determinat x​

Answer 1

$a)x + x + 10 = \frac{90}{ - 10}$

$x + x = 80$

$80 \div 2$

$40°$

$b)3x + 30 = \frac{90}{ - 30}$

$3x = 60$

$20°$

$c)52 + 80 - x = 90$

$52 - x = 10$

$42°$

$d)3x = 90$

$30°$