Answer:
360 : 180
Step-by-step explanation:
sum the parts of the ratio 2 : 1
2 + 1 = 3 parts
divide 540 by 3 to find the value of one part of the ratio
540 ÷ 3 = 180 , then
2 parts = 2 × 180 = 360
So 540 in the ratio 2 : 1 = 360 : 180