6 Slides • 7 Questions

Area of polygons
(Advanced :)

2

Something you already known in new

Fomulas for calculating the area of polygon

3

Multiple Choice

Which of the following horizontal form (橫式) can calculate the area of the Trapezoid.

1

( 11 x 19 ) /2

2

( 11 + 19 ) x 15 /2

3

( 19 + 11 ) x 17 /2

4

( 15 + 17 ) x 19 /2

4

How about the irregular polygons?

5

Filling up the missing part (and subtract it) to make it easier to calculate

Filling method

Cut the irregular shape polygon in to regular form, to make it easier to calculate

Dissecting method

2 ways to solve the question

6

Fill in the Blanks

Type answer...

7

Multiple Choice

Calculate the size of the shaded area. (Include the proper units)

1

165cm square

2

200cm square

3

205cm square

4

225cm square

8

Fill in the Blanks

Type answer...

9

Poll

Is it correct?

YES

NO

10

Poll

Is it correct?

YES

NO

11

BOSS mode

12

Draw

[Calculate the area of this figure]

Group A dissecting the figure into 2 triangles.

Group B dissecting the figure into 2 trapezoids.

13

What's wrong with these two calculations?

Area of polygons
(Advanced :)

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Area of polygons (advanced)

Area of polygons(Advanced :)

Something you already known in new

How about the irregular polygons?

​2 ways to solve the question

BOSS mode

What's wrong with these two calculations?

Area of polygons(Advanced :)

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Mathematics

Area of polygons
(Advanced :)

2 ways to solve the question

Area of polygons
(Advanced :)