Rectangular Prism

T

The L is 5 and the W is 10.

10 x 5 = 50

F

The L is 6 and the W is 10.

10 x 6 = 60

S

The L is 6 and the W is 5.

5 x 6 = 30

TSA= 2 ( T + F + S )

= 2 ( 50 + 60 + 30 )

= 2 ( 140 )

= 280 m2

Triangular Prism

b x h divided by 2

8 x 9 divided by 2

72 divided by 2

= 36

l x w

5 x 27 = 135 cm2

36 cm2

+ 36 cm2

= 207 cm2

Cylinder

2 (pie r2) + (pie x d x h)

= 2 (3.14 . 4 . 4) + (3.14 x 8 x 12)

= 100.48 + 301.44

= 401.92 mm2

1.

AOB.h

divided by 2 x h

3x5

divided by 2

15

divided by 2 x h

7.5 x 8.5 = 63.75cm3

2.

AOB.h

l x w x h

20 x 8x 16 = 2,560 cm3

3.

AOB.h

bxh

divided by 2 x h

4x8

divided by 2

32

divided by 2 x h

16 x 6.5 = 104 cm3

4.

AOB.h

pie r2 .h

3.14 .6 .6 15 = 1,695.6 cm3

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