1. Sometimes Always Never Answer whether each is true Sometimes - - PowerPoint PPT Presentation

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1. Sometimes Always Never Answer whether each is true Sometimes - - PowerPoint PPT Presentation

Apr 11, 2024 236 likes •384 views

1. Sometimes Always Never Answer whether each is true Sometimes Always or Never: 1. A rhombus has four congruent sides. 2. A rectangle has exactly one right angle 3. A square is a rectangle 4. A rhombus is a square 5. A parallelogram is a

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SLIDE 1

1. Sometimes Always Never

Answer whether each is true Sometimes Always or Never:

  • 1. A rhombus has four congruent sides.
  • 2. A rectangle has exactly one right angle
  • 3. A square is a rectangle
  • 4. A rhombus is a square
  • 5. A parallelogram is a regular quadrilateral
  • 6. Diagonals of a rectangle are perpendicular.
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SLIDE 2

2. Fill in the congruent parts of ABCD A B C D

M

  • 1. AB ∼

=

  • 3. ∠BAD ∼

=

  • 2. MD ∼

=

  • 4. ∠BCA ∼

=

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SLIDE 3

3. Fill in the value of the parts of Rectangle RECT R E C T 4

5 M

  • 1. ET =
  • 3. ∠REC ∼

=

  • 2. CT =
  • 4. ∠EMC if ∠RTE = 30
  • 5. RT =
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SLIDE 4

4. Fill in the value of the parts of Rhombus FARM F A R M 6

4 X

  • 1. AR =
  • 3. ∠AXR =
  • 2. FR =
  • 4. ∠FMA if ∠FMR = 140
  • 5. AX =
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SLIDE 5

5. Fill in the value of the parts of Sqaure TURN T U R N 5

M

  • 1. UR =
  • 3. ∠UMR =
  • 2. RT =
  • 4. ∠MUR =
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SLIDE 6

6. Sometimes Always Never

Answer whether each is true Sometimes Always or Never:

  • 1. The diagonals of a Rectangle are perpendicular.
  • 2. Consecutive sides of a rhombus are congruent.
  • 3. The diagonals of a parallelogram are congruent.
  • 4. A parallelogram has 4 acute angles.
  • 5. A diagonal of a square bisects the opposite angles.
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SLIDE 7

7. Polygon Interior Angles

  • 1. A polygon has 14 sides. What is the sum of the interior angles?
  • 2. What is the measure of each angle if it is a regular nonogon?
  • 3. If a regular polygon has an interior angle of 160o. How many

sides does it have?

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SLIDE 8

8. Identify The Shape

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SLIDE 9

9. Polygon Exterior Angles

  • 1. A polygon has 17 sides. What is the sum of the exterior angles?
  • 2. A regular polygon has 12 sides. What is each exterior angle?
  • 3. An exterior angle of a regular polygon is 120o. How many sides

does it have?

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SLIDE 10

10. Parallelogram Proof

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SLIDE 11

11. Solve for x and y N I C E

= =

= = M

  • 1. IM = 2x + 9
  • 3. ∠NIM = 5y − 11
  • 2. ME = 6x − 7
  • 4. ∠ICM = 7y + 33
  • 5. CE =?
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SLIDE 12

12. Solve for x in the Trapezoids

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SLIDE 13

13. Solve for x and y in Rectangle ABCD

Draw the rectangle then solve for x and y

  • 1. ∠ ABD = 3x- 1
  • 2. ∠ EDC = 2y + 6
  • 3. ∠ ADB = 4x + y

4.∠ DBC = x + 8