Answer:

Step-by-step explanation:
Step 1
Find the value of x
we know that
In an inscribed quadrilateral the opposites angles are supplementary
so
In this problem

substitute the values and solve for x




step 2
Find the measure of angle B

substitute the value of x

Answer:
15f^2
Step-by-step explanation:
multiply lenghtxwidth
always make sure to square your answer when doing area
Answer:
Answer: -7
Step-by-step explanation:
So to find the answer of the area, you have to multiply 7 and 8 which would equal to 56.