Perimeter and Area Vocabulary

Decide whether you would add or subtract to find the composite area.

Groups:

(a) ADD

,

(b) SUBTRACT

• 
• 
• 
• 
• 
• 
• 

Tags

TEKS.MATH.3.6D

Order the steps for finding composite area.

• Find the area formulas needed for each shape

• Identify the individual shapes (circle, square, rectangle, or triangle)

• Find the area of each simple shape using your formula sheet

• Add or subtract the areas

Area of half circle? ​ (a)  

Area of Triangle? ​ (b)  

Total Area? ​ ​ (c)  

• 14.13
• 39
• 53.13
• 113.04
• 28.26
• 67.26
• 78

Tags

TEKS.MATH.6.8D

Area of circle? ​ (a)  

Area of square?​ (b)   ​

Total Shaded Area? ​ (c)  

• 254.34
• 324
• 69.66
• 1017.36
• 72
• 578.34

Tags

TEKS.MATH.6.8D

Find the total area of the shape.

Mathematical Equivalence

ON

Tags

TEKS.MATH.6.8D

Find the shaded area.

Mathematical Equivalence

ON

Tags

TEKS.MATH.6.8D

How can you find the perimeter of a composite shape?

• Add up every outside edge

• Add up all outside and inside edges

• Multiply all outside edges

• Add the outside edges, subtract the inside edges

Look at the image.

b

c

Subtract circumference from other sides

Add the circumference to the other sides

Find whole circle's circumference

Add the diameter to the other sides

Find the circumerence of the half circle

How many sides are there?​ (a)  

Combine the straight edges. ​ (b)  

Circumference of the half circle? ​ (c)  

Total Perimeter? ​ (d)  

• 3
• 2
• 4
• 28
• 18
• 34
• 9.42
• 18.84
• 37.42
• 43.42

Find the perimeter of the composite figure.

Mathematical Equivalence

ON