An isosceles trapezoid has a perimeter of 49 miles. its shorter base measures 12 miles and its longer base measures 23 miles. the two remaining sides have the same length; what is that length?

The perimeter is 49 miles, which means that all the sides added up must equal 49. Let's write and equation with the information given, where x is the magnitude of the two sides:

Simplify this a little bit to get x on one side:

Divide by 2 on both sides, and your answer is:

Therefore, the length of the two sides of the trapezoid are both 7 miles.

1. 3.4/4

2. 0.8/7

3. 0.5 x 3

4. 0.9 x 6

5. 10.8

6. 2.35

7. 0.567

8. 9.35

9. 0.02

10. 0.06

11. 0.16

12. 0.42

13. 0.63

14. 5.6

15. 8.1

16. 9.9

17. 0.28

18. 0.48

19. 0.27

20. 0.49

21. 0.45

22. 0.72

23. 0.9

24. 0.88

25. 0.75

26. 0.16

27. 0.328

28. 0.495

29. 0.72

30. 1.068