Answer:
Step-by-step explanation:
the answer is e times d times b plus a then you get solve it yourself @@#@#.
https://www.omnicalculator.com/math/perimeter
78
in a quadrilateral that's inscribed in a circle, opposite angles are supplementary.
102+78=180
10
5 - 5 = 0 You would want to subtract five from zero giving you -5.