Answer:
78
Step-by-step explanation:
112-18-16=78
Thickness of the book is ~
Refer to the attachment for solution ~
Circle
because a hyper bole is (y-k) 2b2 -(x-h) 2a2=1
ellipse is = (x-h) 2a2 + (y-k) 2b2 = 1
parabola is y= a (x-h) 2+ k
that's why circle is the answer
im leaning on parallelogram
It parallel line.
