Question

Calculati masurile unghiurilor unui triumghi stiind ca sunt direct proportionale cu numerele 1,3 si 5(dau coroana)

Answer 1

Răspuns:

a+b+c=180⁰

{a,b,c}dp{1,3,5}

a/1=b/3=c/5=k

a=1k

b=3k

c=5k

1k+3k+5k=180⁰

9k=180⁰

k=180⁰:9

k=20⁰

a=1k=1×20=20⁰

b=3k=3×20=60⁰

c=5k=5×20=100⁰