Finding the Area of a Trapezoid

Finding the Area of a Trapezoid

6th Grade

PLEASE LISTEN

Lesson Standards

• 6.GM.4

  Find the area of complex shapes composed of polygons by composing or decomposing into simple shapes; apply this technique to solve real-world and other mathematical problems.

Please copy the following in your notebook

Multiple Select

Give the most precise name of the figure and the correct formula(s) to find the area.

• Triangle

• Trapezoid

Multiple Choice

What is the total length of the bases?

• 10 in

• 12 in

• 14 in

(please copy in your notebook)

Trapezoid Area Formula 

•  $A=\frac{b_{1\ }+b_2}{2}\ \times\ h$                                        or

•  $A=\frac{h\left(b_1+b_2\right)}{2}$  

Multiple Choice

Which is the correct area formula for Trapezoids?

Multiple Choice

How many sets of parallel lines does a trapezoid have?

• 2

• 4

• 3

• 1

Finding the area of a trapezoid

• How would you find the area of this shape?

• We will revisit this one later. 

Multiple Choice

Find the area.

• 14 in²
• 18 in²
• 52 in²
• 28 in²

Multiple Choice

Find the area.

• 14 in²
• 18 in²
• 52 in²
• 28 in²

Multiple Choice

What is the area of the triangle? Remember:  $A\ =\ \frac{1}{2}bh$  

•  $112\ m^2$  

•  $128\ m^2$  

•  $56\ m^2$  

•  $64\ m^2$  

Multiple Choice

What is the formula used to find the area of this shape? *This symbol: / means divided by

• A= b x h/2

• A= s²

• A= l x w

• A= (b1 +b2)h/ 2

Multiple Choice

What is the formula used to find the area of this shape? *This symbol: / means divided by

• A= b x h/2

• A= s²

• A= l x w

• A= (b1 +b2)h/ 2

Multiple Choice

Find the area.

• 108 cm sq
• 60 cm
• 432 cm sq
• 216 cm sq

Multiple Choice

• 132

• 66

• 60

• 120

Multiple Choice

Find the area

• 56

• 35

• 70

• 28

Multiple Choice

Find the area.

• 28

• 30

• 224

• 60

Multiple Choice

Find the area.

• 61

• 125

• 62.5

• 80

Next Steps

When you have completed the slides please head over to iReady and complete the teacher assigned lesson

HAVE A GREAT REST OF THE DAY!!!.

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