Respuesta :

Answer:

21 CM

24.5 cm

31.5 cm

Step-by-step explanation:

Measure of each side = (ratio of each side / sum of ratios) x perimeter

Sum of ratios = 6 + 7 + 9 = 22

6/22 x 77 = 21 cm

7/22 x 77 = 24.5 cm

9/22 x 77 = 31.5 cm