Answer:
v = 126°
Step-by-step explanation:
Since 54° and u are corresponding angles in parallel lines, they are equal, hence, u = 54°. u and v are Same Side Interior angles. In parallel lines, Same Side Interior angles are supplementary (meaning that they add up to 180°), therefore, v = 180 - u = 180 - 54 = 126°.
= 12 x (4^2)
= 12 x 16
= 192
The area of a rectangle is length * width so: (x+4) * (x-9)
(I assumed you meant x+4 just forgot to put the "+" there, if it's something else, then just simply use that instead.)