T=lxw 5x10=50m2

F=lxw 6x10=60m2

S=lxw 5x6= 30m2

TSA= 2(T+F+S)

TSA= 2(50+60+30)

TSA= 2x (140)

TSA= 280m2

lxw 5x10=50cm bxh/2

lxw 9x5=45cm 9x8/2

lxw 5x8=40cm =72/2

=36cm2

TSA= 50+45+40+36+36

TSA= 207cm2

d/2=r

8/2=r

4=r

c= pie d

c= 3.14x8

c=25.12mm

lxw

=25.12x12= 301.44mm2

Area of a circle=pie r2

=3.14x4x4

=50.24mm2

TSA = cirlce + circle+ rectangle

TSA= 50.24+50.24+301.44 =

401.92mm2

VOLUME

bxh/2 x h bxh1/2 x h2

3x5/2 v=7.5x8.5=63.75m3

15/2

=7.5m

l . w. h

v= 20 x 8 x 16

v=2560cm3

bxh/2 x h bxh1/2 x h2 3/8= 0.375cm

4x8/2 v= 16x6.5 0.375x104 = 39cm3

32/2 v= 104 cm3

=16cm

d/2 pie.r.r.h

12/2 v= 3.14 x 6 x6 15

6cm v= 1695.6cm3

## Sunday, March 11, 2012

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