Special Parallelograms Answers

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A rectangle is shown. All angles are right angles. The length of one side is 2 x and the length of another side is 3 x + 3.

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A
14 units
B
28 units
C
33 units
D
45 units
2
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The perimeter of square JKLM is 48 units.

Question illustration
A
6
B
9
C
12
D
15
3

Which statements are true of all squares? Select three options.The diagonals are perpendicular.The diagonals are congruent to each other.The diagonals bisect the vertex angles.The diagonals are congruent to the sides of the square.The diagonals are twice the length of one side of the square.

A
The diagonals are perpendicular.
B
The diagonals are congruent to each other.
C
The diagonals bisect the vertex angles.
D
The diagonals are congruent to the sides of the square.
E
The diagonals are twice the length of one side of the square.
4

Rectangle PQRS is shown with its diagonals, PR and QS.

Question illustration
A
right triangle
B
equilateral triangle
C
isosceles triangle
D
scalene triangle
5

Rectangle T R E C is shown. Diagonals are drawn from point R to point C and from point E to point T and intersect in the middle. The distance from point R to the middle is 2 x minus 3 and the distance from the middle point to point C is x + 7.

Question illustration
A
10 units
B
17 units
C
20 units
D
34 units
6

Rhombus LMNO is shown with its diagonals.

Question illustration
A
7 cm
B
9 cm
C
14 cm
D
21 cm
7

A square with diagonals is shown. The distance from one point to the middle point is 3. The length from the center point to another point is 3.

Question illustration
A
3.0 units
B
3.5 units
C
4.2 units
D
4.9 units
8

A square stained glass window is divided into four congruent triangular sections by iron edging to represent the seasons of the year. Each diagonal of the square window measures 9 inches.

Question illustration
A
43.5 inches
B
50.9 inches
C
54.0 inches
D
61.5 inches
9

A square with diagonals is shown. The distance from one point to the middle point is x. The length from the center point to another point is x. The length of a side is 8.

Question illustration
A
2.8 units
B
3.3 units
C
4.0 units
D
5.7 units
10

ABCD is a square.

Question illustration
A
5 units
B
7 units
C
11 units
D
13 units
11

The figure is a parallelogram. One diagonal measures 28 units.

Question illustration
A
No, it is not a rectangle because the diagonals are congruent.
B
No, it is not a rectangle because the sides of the parallelogram do not meet at right angles.
C
Yes, it is a rectangle because the diagonals are congruent.
D
Yes, it is a rectangle because the sides of the parallelogram do meet at right angles.
12

Diagonals AC and BD form right angles at point M in parallelogram ABCD. Prove ABCD is a rhombus. Statements Reasons1.ABCD is a parallelogram1.given2.∠AMB, ∠BMC, ∠CMD, and ∠DMA are right angles2.given3.∠AMB ≅ ∠BMC ≅ ∠CMD ≅ ∠DMA3.right angles are congruent4.AC bisects BD; BD bisects AC;4.diagonals of a parallelogram bisect each other5.AM ≅ MC, MB ≅ MD5.definition of a bisector6.?6.SAS congruency theorem7.AB ≅ BC ≅ CD ≅ DA7.CPCTC8.figure ABCD is a rhombus8.definition of a rhombus

Question illustration
A
△ABC ≅ △ADC ≅ △BAD ≅ △BCD
B
△AMB ≅ △CMB ≅ △CMD ≅ △AMD
C
△ABC ≅ △ADC ≅ △AMD ≅ △BMC
D
△AMB ≅ △CMD ≅ △BAD ≅ △BCD
13

The figure shown is a rhombus.

Question illustration
A
x + y = z
B
2x = y + z
C
z + x = 2y
D
2x + 2y = 4z

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