Answer:
x = 27.57 in to the nearest hundredth.
Step-by-step explanation:
The longer diagonal is opposite the obtuse angle.
Also as it is a rhombus all sides = 14 in.
Use the Cosine Rule:
x^2 = 14^2 + 14^2 - 2*14^2 cos 160
x^2 = 760.36
x = sqrt 760.36
x = 27.57 in.
Answer:
the second one
Step-by-step explanation:
Answer:
0 in²
Step-by-step explanation:
Maybe it would help to show some lines or something shape-like.
The Lagrangian is

with critical points where the partial derivatives vanish:





The second and third equations tell us
, so that in the last equation we find

and from the fourth equation we get

So we have two critical points,
and
, which give respective extreme values of
(maximum) and
(minimum).