Treat

as the boundary of the region

, where

is the part of the surface

bounded by

. We write

with

.
By Stoke's theorem, the line integral is equivalent to the surface integral over

of the curl of

. We have

so the line integral is equivalent to


where

is a vector-valued function that parameterizes

. In this case, we can take

with

and

. Then

and the integral becomes


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Answer:
B
Step-by-step explanation:
A isosceles triangle is a triangle who has two sides of the same length
8-(8+48) = -48 then divide that by 8 and you get -6 as your result