4 years ago

Help me please!! It’s due soon!!

Mathematics

1 answer:

yaroslaw [1]4 years ago

7 0

Answer:

13.7

Step-by-step explanation:

Using cosine formula:

AB^2 = AC^2 + BC^2 - 2*AB*BC*cosC

AB^2 = 15^2 +12^2 -2*15*12*cos60

AB = 13.7 in

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