If the measure of the given central angle is
rad, then the length of the subtended arc is
satisfying

It's not clear from the question what the value of
is...
Answer:
1.38888888889 Rounded answer: 1.40 or 1.4
Step-by-step explanation:
Apply the Pyth Thm twice:
diagonal of base is sqrt(4^2+6^2).
Then the length of diagonal AB is L = [sqrt(4^2+6^2)]^2 + [sqrt(1)]^2
Answer:
D is the largest angle
Step-by-step explanation:
The angle opposite the largest side is the largest and the angle opposite the smallest side is the smallest.
Since 12 is the largest side, angle D is the largest
8 is the smallest side, F is the smallest angle