TEK 7.9C Mini Lesson

Do Now:

Draw

Use your pencil and DECOMPOSE the shape

into two separate, familiar shapes

Hotspot

DECOMPOSE the shape below on your notes, then select all shapes that correspond with your answers along with the appropriate formula for area.

Drag and Drop

The area for trapezoid 1 is

Placeholder

.

The area for trapezoid 2 is ​ ​

Placeholder

.

This means that total area is ​

Placeholder

.

Drag these tiles and drop them in the correct blank above

7 square feet

8 square feet

15 square feet

10 square feet

12 square feet

20 square feet

5 square feet

18 square feet

Hotspot

DECOMPOSE the shape below on your notes, then select all shapes that correspond with your answers along with the appropriate formula for area.

Dropdown

I would need to calculate the area of the ​

Select answer

using the fomula ​

Select answer

and then ​

Select answer

Labeling

What is the length of the orange line?

Drag labels to their correct position on the image

6ft

14.5 ft

15.5 Ft

9.5ft

Drag and Drop

The area for the quarter circle (Shape 1) is

Placeholder

.

The area for the trapezoid (Shape 2) is ​ ​

Placeholder

.

This means that total area is ​

Placeholder

.

Drag these tiles and drop them in the correct blank above

28.26 square feet

75 square feet

103.26 square feet

113.04 square feet

56.52 square feet

150 square feet

106.25 square feet

263.04 square feet

Let's Try this one

Drag and Drop

The area of the large square is ​

Placeholder

. The area of the smaller square is ​

Placeholder

the area of the shaded region is

Placeholder

because you have to ​

Placeholder

the smaller square form the larger square.

Drag these tiles and drop them in the correct blank above

12 cm2

subtract

4 cm2

16 cm2

8 cm2

add

Drag and Drop

A(rectangle) = ​

Placeholder

square meters. A(triangle) = ​

Placeholder

square meters. The total area of the composite figure is ​

Placeholder

square meters.

Drag these tiles and drop them in the correct blank above

90

20

110

46

52

42

Drag and Drop

The area of the large rectangle is ​

Placeholder

. The area of the triangle is ​

Placeholder

the area of the shaded region is

​

Placeholder

because you have to ​

Placeholder

the triangle form the rectangle.

Drag these tiles and drop them in the correct blank above

subtract

add

Multiple Choice

Find the area of this composite figure

• 20 cm²

• 28 cm²

• 33 cm²

• 35 cm²

Fill in the Blanks

A coffee shop sign is in the shape of a circle. The sign measures 18 inches across in diameter. Which measurement is closest to the area of the sign in square inches?

Math Response

Angle ABC and angle CBD are complementary. What is the value of x?

Type answer here

Correct Answer: 26

Deg^°

Rad