The answer to your question is “D”
Btw you can use DESMOS for future questions like this
For all triangles, the angle sum is 180°, therfore we can add all the angles up to solve x
54 + 55 + x + 74 =180
183 + x =180
X = 180 - 183
X = - 3 °
Don't worry, negative result is normal and possible.
All are relations except for relation 3
<span>C) 91.44 cm
hope this helps :) </span>
