Tim the tool man wants to build a bookshelf like the one shown here . it has three horizontal lengths , each 3 2 / 3 feet, and t
wo vertical lengths each 2 5/8 feet. what is the total amount of wood necessary to build the shelves ?
a ( 15 1/4 ft
b ( 15 5/8 ft
c ( 16 1 / 4 ft
d ( 16 5 / 8 ft
a ( 15 1/4 ft
b ( 15 5/8 ft
c ( 16 1 / 4 ft
d ( 16 5 / 8 ft
1 answer:
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Answer:
x ≈ 23.31
Step-by-step explanation:
We can use the law of cosines because we know 2 sides and 1 angle.
The general formula for the law of cosines if the triangle sides are a, b,c and α is the angle between sides a and b. c is the missing side.
In our problem the law of cosines is
x =
x ≈ 23.31