Question

aflati masurile unghiurilor unui triunghi daca ele sunt direct proportionale cu numerel 3 4 5

Answer 1

{ a,b,c } d.p { 3,4,5 }

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a + b + c = 180°

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a / 3 = b / 4 = c / 5 = K

a / 3 = K => a = 3 K

b / 4 = K => b = 4 K

c / 5 = K => c = 5 K

3 K + 4 K + 5 K = 180°

7 K + 5 K = 180°

12 K = 180°

K = 180° : 12

K = 15

a = 15 x 3 = 45°

b = 15 x 4 = 60°

c = 15 x 5 = 75°

Answer 2

notam cu a;b;c masurile unghiurilor

(a;b;c)dp(3;4;5)

a+b+c=180grade

a/3=b/4=c/5=k=>a=3k; b=4k ; c=5k

3k+4k+5k=180grade

12k=180grade

k=180/12

k=15grade

a=3k=3*15=45grade

b=4k=4*15=60grade

c=5*k=5*15=75grade