A substance that is made of atoms of more than one type bound together is called a(n) ____________________ .
1 answer:
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Given:
The track is a square with a half circle on its left and right sides.
The area of the square is 128 square feet.
To find:
The length of the track.
Solution:
Let side length of the square be x.
Area of square is
Taking square root on both sides.
From the given table 127.7 is closed to 128. So, is 11.3.
Diameter of circle = Side of square = 11.3.
The track has 2 sides of the square and the distance around 1 complete circle(s).
Radius of circle is
Length of the truck is sum of length of square and radii of two circles.
Therefore, the total length of the truck is 22.6 feet.
