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Sagot :
Answer:
6.volume=
[tex]4 \times 3 \times 11 = 132 [/tex]
surface area
[tex]2(4 \times 3 + 11 \times 3 + 4 \times 11) = 172in \\[/tex]
Answer:
6.
volume=l×b×h=11×3×4=132in³
surface area =2(lb+bh+lh)=2(11×3+3×4+11×4)=178in²
7.
lateral surface area of traingular prism=perimeter of traingle ×length=[5+3+4]×6=72cm²
curved surface area=2[area oftraingle]=2×1/2×4×3
=12cm²
now
total surface area=72cm²+12cm²=84cm²
8.
volume of traingular prism=area of traingle ×length
=1/2×12×3.4×4=81.6in³
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