units of area

• Wiskunde
• Middelbare school
• havo
• Leerjaar 1

units of area

at the end of the lesson, you can calculate area of different figure and use units of area properly.

What is the area of the rectangle?

what is the area of the triangle?

Area of a rectangle

Area of a rectangle = Length · Width 

You express area in squares... cm²  m²  ft²

Area of a Triangle

Area is about how much space is covered.

The area of a shape is how many times the unit of area fits onto it.

Units of area

Practice

a.                   = _______                   

b.                           __________                          

c.                      = _____________are         

4km​2​​

m​2​​

0.23ha=

m​2​​

25cm​2​​

Area of a rectangle

What is the formula for the area of a rectangle ?

What kinds of units do we use for area? 

try these too!!!

34ha + 34 are =__________________

_____________

                         = 

m​2​​

5km​2​​+3500dam​2​​=

m​2​​

0.45ha+20are+3m​2​​

m​2​​

Seatwork time

Do chapter 7.2B, questions 17, 19 ,25 ,26*