Question

VA ROG MULT aflati masura celuilalt unghi ascutit al unui triunghi dreptunghic stiind ca unul din ele are:
30 de grade
50 de grade
60 de grade
89 de grade
2 grade

Answer 1

30 de grade=180-90-30=60
50 de grade=180-90-50=40
60 de grade=180-90-60=30
89 de grade=180-90-89=1
 2       grade=180-90- 2=88

Answer 2

ΔABC - dreptunghic=>∡A=90°si  ∡B+∡C=90
∡B=30=>∡C=90-30=60°
∡B=50=>∡C=90-50=40°
∡B=60=>∡C=90-60=30°
∡B=89=>∡C=90-89=01°
∡B==2=>∡C=90-02=88°