The answer is the following: .983
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The set of coordinates represent B.Rectangle.
If the corresponding sides of two similar triangles have congruent angles than the sides correspond to each other
in triangle abc
and triangle def
ab:de
bc:ef
ca:fd
so they correspond in ratio but are not necessarily congruent
if in the similar triangles the sides are equal than the angles will correspond in ratio to add up to 180 degrees
so if triangle abc≈ triangle def
then
∠abc:∠def
∠bca:∠efd
∠cab:∠def
Answer:
0.866
Step-by-step explanation:
By definition
We know that 
. Inverse of sine is arcsin, so, angle 
is computed as
Therefore, cosine of is
cos (30°) = 0.866
+2 +4 +6 +8 basically multiples of 2 or even numbers
