is the disk of radius 1 parallel to the
-plane and lying in the plane
. Parameterize this surface by

with
and
. Take the normal vector to
to be

(the orientation doesn't matter because this is a scalar surface integral)
Then


We know that 1 mm=0.01 dm
75 mm=0.75 dm
choice D
Answer:
8.2
Step-by-step explanation:
Use cosine law:
BC² = 7² + 9² - 2(7)(9)cos(60)
BC² = 67
BC = sqrt (67)
BC = 8.1853
BC = 8.2 (nearest tenth)
Answer:
36
Step-by-step explanation:
The correct congruence is ASA.