Find the perimeter of trapezoid ABCD. The units on the graph are in feet.
A.
18 + 7 + 10 feet
18+ V29 + 741 feet
26 +17 + 10 feet
26 + V29 + 741 feet
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Answer: BC is 1+3=4 (units)
2. AD is 3+5= 8 (units)
3. Draw the altitude CH from point C, as shown in the figure.
4. Then triangle CHD is a right triangle, with hypothenuse CD, and sides HD and CH.
5. 20.9
6. AB=CD=4.47 because the trapezoid is isosceles.
7. P= BC+AD+AB+CD=4+8+4.47+4.47=20.9 (units)
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