Transcript Area and Perimeter of Composite Figures Review2

Squares or Rectangles:
BxH=
Triangles:
BxH÷2=
Composite Figure:
Combining two different figures together
Composite Area:
Find the area for each individual shape then
add it all together to find the area of the
composite shape.
Mrs. Bohannan created an outline of a building. If
she decides to pour concrete to cover the base of the
building for a foundation, how many feet will she
need to cover the building?
20 ft
A)
B)
C)
D)
600 ft2
800 ft2
1200 ft2
1400 ft2
30 ft
20 ft
40 ft
Ms. Cogswell was making a crown out of construction
paper. If she decides to cover the crown with glue
and glitter, how many total centimeters will she
cover?
A)
B)
C)
D)
24
36 cm2
48 cm2
84 cm2
4 cm
4 cm
cm2
3 cm
12 cm
Mr. Sigg is celebrating secretaries day! He is going to
hang a banner made of fabric on the football field’s
gate recognizing and thanking all of the secretaries
in the building. How many square feet of fabric will
be needed to cover the gate?
A)
B)
C)
D)
105 ft2
110 ft2
210 ft2
215 ft2
7 ft
7 ft
15 ft
15 ft
It was a beautiful day out, so Ms. Shogren decided to fly
a kite. However, she noticed that the kite needed
repair. She decided to recover the kite with fabric.
How many square feet of fabric will she need to
cover the kite?
8 in
12 in
A)
B)
C)
D)
48 in2
96 in2
146 in2
169 in2
8 in
Mrs. Woolever’s patio is made out of square
concrete tiles. The patio contains 6 slabs that are 4
feet wide as shown below. What is the area of Mrs.
Woolever’s patio?
A)
B)
C)
D)
16 ft2
64 ft2
96 ft2
104ft2
Below is a picture of a paper airplane Mrs. Hilton made.
Looking at the composite shape what is the area of
the paper airplane?
A)
B)
C)
D)
in2
108
140 in2
144 in2
180 in2
8 in
2 in
18 in
Mr. Essex is building a cement walkway around his
pool outside. If he uses square concrete tiles that
measure 6 feet wide as shown below. What is the
area of Mr. Essex’s walkway?
A)
B)
C)
D)
36 ft2
288 ft2
628 ft2
864ft2
Find the area & perimeter of the following
composite figure
14 cm
• The figure can be divided into a
rectangle and triangle as shown below.
14 cm
Area of Rectangle: 12 x 15 =180 cm2
Area of Triangle: 12 x 7 ÷ 2 =42 cm2
Total area: 180 + 42 = 222 cm2
14 cm
Composite Area
1. Find the area of this composite figure.
17 cm
3 cm
3 cm
3 cm
3 cm
8 cm
8 cm
3 cm
3 cm
3 cm
3 cm
17 cm
Area of small rectangle: 8 x 3 = 24 cm2
Area of big rectangle: 17 x (8+3+3)=
238 cm2
Total Area: 24 + 238 + 24 = 286 cm2
17 cm
3 cm
8 cm
3 cm
14 cm
8 cm
Composite Perimeter
2. Find the perimeter of the polygon below.
19 m
10 m
13 m
5m
Composite Perimeter
2. Find the perimeter of the polygon below.
19 m
10 m
13 m
5m
3m
14 m
10 + 19 + 13 + 5 + 3 + 14 = 64 m
Area and Perimeter!
3. Find the perimeter of the polygon below.
8m
5m
6m
2m
4. Find the area of the polygon above.
5. Find the perimeter of the polygon below:
5 cm
9 cm
14 cm
18 cm
6. Find the area of the polygon above.
7. Find the perimeter of the polygon below.
2 in
7 in
10 in
5 in
8. Find the area of the polygon above.
9. Bill wants to enclose an area of his yard
as shown below. How many feet of
fence does he need to go around the
enclosed area?
15 ft
25 ft
20 ft
10. Greg wants to enclose an area of his
yard as shown below. How many square
feet (ft2) will he enclose?
15 in
25 in
20 in
11. Find the area.
6 ft
6 ft
7 ft
12. Find the area.
10 ft
9 ft
12 ft
13. Find the area.
4 ft
13 ft
6 ft
14. Find the area.
10 ft
8 ft
10 ft
15. Find the area.
10 ft
5 ft
5 ft
30 ft
16. Find the area.
10 ft
8 ft
5 ft
3 ft
5 ft
17. Find the area.
14 ft
5 ft
14 ft
30 ft
18. Find the area of the rug below.
4 ft
6 ft
4 ft
6 ft
3 ft
8 ft
4 ft
4 ft
19. If I want to paint the front of this kite,
how many square inches
of paper do I
5 in
need to paint?
4 in
4 in
10 in
20. Find the area of this polygon.
6 in
3 in
8 in
21. Find the area of the composite figure.
10 yd
7 yd
10 yd
7 yd
7 yd
10 yd
7 yd
10 yd