Measuring Area - Square, Rectangle, Triangle, Trapezoid, Parallelogram & Circle

2. Learning Target:
a. Find the area of
composite figures formed
by any two or more of
the following: triangle,
square, rectangle, circle,
and semi-circle;

3. is the total
number of square
units within a two-
dimensional figure

4. AREA
4 square units
4 sq. units

5. AREA
4.5 square units
4.5 sq. units

6. AREA
22 square units
22 sq. units

7. AREA
5 square units
5 sq. units

8. AREA
26.5 square units
26.5 sq. units

9. = 100
Area =
Area = s2
a
Area = s x s
a 10 m
10
m
10
m
10 m
10 x
10

10. 64
cm2
Area =
Area = s2
a
Area = s x s
a 8 cm

11. Area = L x W
L
L
W
W
15 cm
5 cm
Area = L x W
Area = L x W
= 15 x 5
= 75 cm2

12. Area = L x W
L
L
W
W
8 m
3 m
Area = L x W
Area = L x W
= 8 x 3
= 24 m2

13. Area = b x h
2
Area = ½ bh
Area = ½ bh
= ½ x 4 x 3
= 6 cm2

14. Area = b x h
2
Area = ½ bh
Area = ½ bh
= ½ x 6 x 15
= 45 ft2

15.  is the total number of
square units within a
two-dimensional figure
Area = s x s
Area = L x W
Area = b x h
2

18. Area = 5 + 9
2
x3
= 14
2
= 7
x3
X 3
= 21 cm2

19. Area = 3 + 6
2
x4
= 9
2
x4
= 4.5 X 4
= 18 in2

20. = 10 x 5
= 50 cm2

21. = 15 x 8
= 120 in2

23. = 3.14 X 72
= 3.14 X 49
= 153.86 m2

24. = 3.14 X 112
= 3.14 X 121
= 379.94m2

25. = 3.14 x 82
2
= 3.14 x 64
2
= 100.48 cm2

26. = 3.14 x 72
2
= 3.14 x 49
2
= 76.93 cm2

27.  is the total number of
square units within a
two-dimensional figure