David proved the Law of Cosines with reference to ∆ABC using a different method. Arrange the steps of his proof in the correct sequence. (on simplification)
Therefore, .

(on simplification)
Similarly, prove that
and
.

(Transitive Property)

(on simplification)
In ,
(Pythagorean Theorem)

In ,
(Pythagorean Theorem)

Draw a perpendicular, , from B to side AC.
Let and .
Therefore, .

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answer: option d : 3.85 units

step-by-step explanation: in the given figure the blue line is diameter   .the diameter is the blue line which equals 7.7 units.radius is half of diameter .radius = 7.7÷2=3.85 units.

option d is the right answer.

explanation:

mark brainliest and have a great dayz1

answer; european crusades;

the proximity of water was an advantage to western europe and its culture was able to flourish as a result. trade and travel by sea were easier and safer in historical times.

1. there are no mountains to protect it from the sea

2. and its has wet cool summers and wet, mild winters.