Practice and Problem-Solving Exercises

A Practice

See Problem 1.

Determine whether Δ A B C cap delta eh b c is scalene, isosceles, or equilateral. Explain.

See Problem 2.

Determine whether the parallelogram is a rhombus, rectangle, square, or none. Explain.

8. P( − 1 , negative 1 comma 2), O(0, 0), S(4, 0), T(3, 2)
9. L(1, 2), M(3, 3), N(5, 2), P(3, 1)
10. R ( − 2 , − 3 ) , r open minus , 2 comma negative 3 close comma S(4, 0), T(3, 2), V ( − 3 , − 1 ) v open minus , 3 comma negative 1 close
11. G(0, 0), H(6, 0), I(9, 1), J(3, 1)
12. W ( − 3 , 0 ) , w open minus , 3 comma 0 close comma I(0, 3), N(3, 0), D ( 0 , − 3 ) d open 0 comma negative 3 close
13. S(1, 3), P(4, 4), A(3, 1), T(0, 0)

See Problem 3.

What is the most precise classification of the quadrilateral formed by connecting in order the midpoints of each figure below?

14. parallelogram PART

    

15. rectangle EFGH

    

16. isosceles trapezoid JKLM

    

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