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Effects on Area Changing Dimensions

Last updated over 1 year ago

10 questions

10

10

10

10

10

10

10

10

10

10

Question 1

1.

Perimeter of first triangle times the scale factor to give the perimeter of the new triangle.

8 + 12 + 9 = 29 The perimeter of the first triangle is 29.

Now the scale factor is 13 divided by 8.

So the first perimeter 29 times the scale factor 13/8

29x13/8

47.13 cm

37.13 cm

57.13 cm

67.13 cm

Question 2

2.

25 units

30 units

65units

40 units

Question 3

3.

Find the area of the green figure.

Area of the first triangle times the scale factor sqaured.

36 x (4/8)²

12 yd²

18 yd²

22 yd²

9 yd²

Question 4

4.

Find the area of the green figure.

40 x (7/5)²

76.5 m²

82.8 m²

86.5 m²

78.4 m²

Question 5

5.

Find the value of x.

Solve for x.

35 cm

18 cm

45 cm

30 cm

Question 6

6.

Find the value of x.

Solve for x.

10 in 

40 in

60 in

20 in

Question 7

7.

Find the area of the green figure.

9 mm²

27 mm²

81 mm²

54 mm²

Question 8

8.

Find the area of the green figure.

120 ft²

540 ft²

80 ft²

240 ft²

Question 9

9.

Find the area of the green figure.

185.25 in²

161.25 in²

151.25 in²

175.25 in²

Question 10

10.

Find the area of the green figure.

672 cm²

602 cm²

584 cm²

652 cm²