Area Formulas

What is AREA?

• the amount a shape weighs

• the length of a shape

• the amount of space inside of 3-dimensional object

• the space occupied by a flat shape

Tags

CCSS.3.MD.C.5

CCSS.3.MD.C.6

When labeling area measurements, the unit is always squared

(examples:  $in^2$  $cm^2$  $ft^2$   )

• TRUE

• FALSE

Formula for the area of a rectangle

• $A=LW$
  

• $A=\frac{bh}{2}$

• $A=\left(\frac{b_1+b_2}{2}\right)h$

• $A=\pi r^2$

Tags

CCSS.3.MD.C.5

CCSS.3.MD.C.7

Formula for the area of a circle

• $A=LW$
  

• $A=\frac{bh}{2}$

• $A=\left(\frac{b_1+b_2}{2}\right)h$

• $A=\pi r^2$

Tags

CCSS.3.MD.C.5

CCSS.3.MD.C.7

Formula for the area of a trapezoid

• $A=LW$
  

• $A=\frac{bh}{2}$

• $A=\left(\frac{b_1+b_2}{2}\right)h$

• $A=\pi r^2$

Tags

CCSS.3.MD.C.5

CCSS.3.MD.C.7

Formula for the area of a triangle

• $A=LW$
  

• $A=\frac{bh}{2}$

• $A=\left(\frac{b_1+b_2}{2}\right)h$

• $A=\pi r^2$

Tags

CCSS.3.MD.C.5

CCSS.3.MD.C.7

Formula for the area of a parallelogram

•  $A=bh$  
  

• $A=\frac{bh}{2}$

• $A=\left(\frac{b_1+b_2}{2}\right)h$

• $A=\pi r^2$

Formula for the area of a square

•  $A=bh$  
  

• $A=\frac{bh}{2}$

• $A=\left(\frac{b_1+b_2}{2}\right)h$

•  $A=s^2$  
  

Tags

CCSS.3.MD.C.5

CCSS.3.MD.C.6

CCSS.3.MD.C.7

Formula for the area of this shape

•  $A=bh$  
  

• $A=\frac{bh}{2}$

• $A=\left(\frac{b_1+b_2}{2}\right)h$

•  $A=s^2$  
  

Formula for the area of this shape

• $A=bh$
  

• $A=\frac{bh}{2}$

• $A=\left(\frac{b_1+b_2}{2}\right)h$

• $A=s^2$