Question

Question 1: Identify the polygon with

vertices P(2,−2)

P2,-2, Q(4,2)

Q4,2, R(6,2)

R6,2, and S(4,−2)

S4,-2, and then find the perimeter and area of the polygon.

 Question 2: 

Identify the area of the polygon with vertices B(3,2)

B3,2, C(7,−2)

C7,-2, D(2,−4)

D2,-4, and E(1,−2)

E1,-2.

 Question 3: 

Both diagonals of a kite are multiplied by 1/3, Which of the following describes the effect of this change on the area?

The area is multiplied by 1/3.

The area is multiplied by 1/9.

The area is multiplied by 9.

The area is multiplied by 3.

  Question 4: 

The base length of a triangle is multiplied by 1/4, Which of the following describes the effect of this change on the area?

The area is multiplied by 1/4.

The area is multiplied by 1/16.

The area is multiplied by 4.

The area is multiplied by 16.

  Question 5: 

Which of the following shows that the two composite figures cover the same area?

For both figures, A = 4 + 4 + 3 + 3 = 14 units².

For both figures, A = 4 + 3 + 3 + 2 = 12 units².

For both figures, A = 4 + 3 + 3 + 3 = 13 units².

For both figures, A = 4 + 4 + 3 + 2 = 13 units².

  Question 6:

A square has side length of 16.5 in, If the area is multiplied by 9, what happens to the side length?

The side length is multiplied by 4.5.

The side length is doubled.

The side length is multiplied by 9.

The side length is tripled.

  Question 7: 

The radius of a circle is multiplied by 1/4, Which of the following describes the effect of this change on the area?

The area is multiplied by 1/16.

The area is multiplied by 1/4.

The area is multiplied by 1/8.

The area is multiplied by 4.

  Question 8: 

Which of the following is the best estimate of the area of the irregular shape?

20.5 units²

18 units²

19 units²

25.5 units²

  Question 9: 

Janet decides to sow grass in a rectangular plot of her garden that has a length of 30ft and height of 25ft. It costs her $9.50

$9.50 per square foot for sowing the grass. If she wants to sow grass in a plot with half the base and half the height, she will have to pay $3,562.50

$3,562.50. Is this reasonable? Explain.

No; if the dimensions are halved, the area is multiplied by 1/4.

Yes; if the dimensions are halved, the area is multiplied by 2.

Yes; if the dimensions are halved, the area is multiplied by 1/4.

No; if the dimensions are halved, the area is multiplied by 4.

  Question 10: 

A circle has a radius of

 

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