7.3 Practice A Geometry Answers

Prentice Hall Gilt Geometry • Teaching Resources

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63

Name Class Date

1-7 Practise Grade G

Midpoint and Distance in the Coordinate Plane

Discover the coordinate of the midpoint of the segment with the given endpoints.

i. three and 5 2. 2 7 and iv 3. five and 2 9 four. 2 6 and 2 10

Discover the coordinates of the midpoint of AB .

5. A(6, vii), B(4, 3) half-dozen. A(2 ane, five), B (two, ii 3)

7. A(xiv, 2 ii), B(vii, 2 eight) 8. A (0, 0), B (two 5, 12)

nine. A(two.viii, i.1), B(2 3.4, 5.7) ten. A (2 ane

ii, two ane

4), B(iii 1

4, two i)

Th e coordinates of point Y are given. Th e midpoint of XY is (iii, 2 v). Find the

coordinates of betoken X.

eleven. Y(0, 2) 12. Y(2 x, 5) 13. Y(vii, ane)

14. Y(iv, ii 8) 15. Y (ii one, 2 9) 16. Y (2.v, 2 six.5)

Find the distance between each pair of points. If necessary, round to the

nearest tenth.

17. A(half-dozen, 7), B(2 1, vii) xviii. C (5, 2 five), D (5, three)

19. East(2 1, 0), F(12, 0) twenty. Q (2, 2 6), T (10, 0)

21. H(20, two four), I (2 4, 3) 22. J (ii v, v), Grand (2 3, two 2)

Th e room shown below right is 14 ft by 10 ft. Find the dimensions of each slice

of piece of furniture to the nearest tenth.

23. length and width of the dresser

24. length and width of the table

25. length and width of the bed

26. Reasoning Th e midpoint of AB is on the

y-axis, and AB is parallel to the x-axis. Point A

is located in Quadrant Three. Which quadrant

contains point B? Explain.

x

y

2468ane0ane214

2

4

half-dozen

8

x

Bed

Table

Dresser

0

4

seven8

13

25

10

seven.3

2.8 ft 32.8 ft

7.1 ft 35.7 ft

six ft threeiii ft

(v, v) ( one

2, ane)

(2 2 1

2, 6)

(2 7

8, ii 5

8 )

22 iieight

(6, 2 12)

(two, 2 2)

(16, two 15)

(two 0.3, 3.four)

(2 1, 2 11)

(7, 2 one) (3.five, two 3.5)

two3

2

(10 1

2, ii5)

IV; Answers may vary. Sample: Suppose A is at

(2 4, 2 5) , which is a point in Quadrant III. Then

B volition exist on the reverse side of the y-axis at

(4, 2 5) in Quadrant IV.

7.3 Practice A Geometry Answers,

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