Respuesta :
15 because it’s half of the 30 cm and 3(shortest side) is half of 6(longest)
Answer:
15 cm
Step-by-step explanation:
The 6 part of the ratio relates to 30 cm
Dividing by 6 gives the value of one part of the ratio
30 cm ÷ 6 = 5 cm ← value of 1 part of the ratio, thus
3 parts = 3 × 5 cm = 15 cm ← shortest side
