What is the equivalent ratio of 1:2 = __:4

2:4

Step-by-step explanation:

Notice how the 2 has now become a 4

that implies that the ratio has been doubled, to make the ratio remain the same we have to double the 1, double of 1 is 2 so the new ratio is 2:4

answer:   28.56 feet (approx)

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° =

but bc = 20 feet.

⇒ tan 55 ° =  

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet