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Properties of Other QuadrilateralsPowerPoint Presentation

Properties of Other Quadrilaterals

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Properties of Other Quadrilaterals

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Properties of Other Quadrilaterals

Students will be able to…

Identify and use the properties of rectangles, squares, rhombuses, kites, and trapezoids

- Rhombus
- Square
- Kite

- Rhombus
- Square

1

12°

2

4

3

- Rectangle
- Square
- Isosceles Trapezoid

BD=5y-7 and AC = y + 5. Find the value of y and the length of BE.

E

EXAMPLE:

If BD= 2x+10 and AC=x+15, find x and the length of the diagonals.

- The 2 parallel sides are the bases
- The 2 non-parallel sides are the legs

BASE ANGLES

B

D

LEG

LEG

A

C

BASE ANGLES

Name the following:

Bases:

Legs:

2 Pairs of Base Angles:

- Trapezoid
- Isosceles Trapezoid
The following quadrilaterals have exactly one pair of opposite congruent sides:

- Isosceles Trapezoid

The base angles of an isosceles trapezoid are congruent

B

D

C

A

Find x.

- Kite

46°

1

2

3

1

44°

112°

2

FIND THE MEASURE OF THE MISSING ANGLES.

- Joins the midpoints of the nonparallel sides
- Is parallel to the bases
- Its length is ½ the sum of the bases

MN || BC

MN || AD

MN = ½(BC+AD)

Find the following:

EF:

86°

3

4

108°

x

8

12