Your answer is B scope sorry if I’m wrong
We know that
∠ECD=∠ACB------> given in the problem
∠DEC=∠CAB------> 90°
so
∠EDC=∠ABC
therefore
triangles EDC and ABC are similar
<span>So
the ratio of the legs are equal</span>
![\frac{x}{9} = \frac{140-x}{81} \\ 81*x=9*(140-x) \\ 81x+9x=1260 \\ 90x=1260 \\ x=14](https://tex.z-dn.net/?f=%20%5Cfrac%7Bx%7D%7B9%7D%20%3D%20%5Cfrac%7B140-x%7D%7B81%7D%20%20%5C%5C%2081%2Ax%3D9%2A%28140-x%29%20%5C%5C%2081x%2B9x%3D1260%20%5C%5C%2090x%3D1260%20%5C%5C%20x%3D14)
the answer isAC is equal to 126
Here's the answer. I hope it will help you :)
Without the table I will guess 5 is common to all 3 they are proportional
Answer:a
Step-by-step explanation: