Answer:
Step-by-step explanation:
The picture of the question in the attached figure
we know that
The measure of the<u><em> interior angle</em></u> is the semi-sum of the arches that comprise it and its opposite.
so
the answer is B
#a
And
#2
Attached
#3
814
A=2(wl+hl+hw)
=2((11×22)+(5×22))+(5×11))
= 814