Question

Rezolvati problema care vise da in exercitiu

Answer 1

Răspuns:

Explicație pas cu pas:

Δ ACB = isoscel

m∡B= m∡C

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a).

m∡B /3  = m∡C/3  = m∡A/6 = k

(m∡B  + m∡C + m∡A ) /  (3+3+6) =k

K=180° / 12 = 15°

m∡B= 3*k=3*15°=45°

m∡B= m∡C=45°

m∡A= 6*k=6*15°=90°

b).

m∡B /4  = m∡C/4  = m∡A/7 = k

(m∡B  + m∡C + m∡A ) /  (4+4+7) =k

k==180° /15 = 12°

m∡B= 4*k=4*12°=48°

m∡B= m∡C=48°

m∡A= 7*k=7*12°= 84°

Succes