Two ladders are leaning against a wall at the same angle , as shown. How long is the short Ladder?

Am I right?

28 ft ****
175 ft
25 ft
20 ft

3 answers

still missing information.
how long is the other ladder?
do they both reach the same height?
One hundred middle school students take a survey that asks them about their fruit preferences. Thirty-seven out of 100 students said they prefer pineapples to peaches. How would you write this amount as a percent?
Answer is A. 28 ft
50 / 20 = 2.5
70 / 2.5 = 28
Meaning 28 is the missing length