Similar shapes (area)

• 42

• 63

• 1176

• I don't know

What is the first step?

• Find the scale factor

• Multiple the Area

• Add them together

• I don't know

How do you find the area of the smaller shape?

• Multiple by 5

• Divide by 5

• $Divide\ by\ 5^2$

• $Multiply\ by\ 5^2$

How you find the scale factor?

• Add them together

• 14 divided by 7

• 20 Divided by 7

• 20 Multiplied by 7

When I have the scale factor, how do I use it to find the area?

• Square root

• Square

• Double it

• Nothing

What is the Area?

• 100

• 10

• 500

• 44.7

How confident are you to find the area of a similar shape?

Tricky one!