find volume is the prism with sides of a triangular base 12 cm, 16 cm, 20 cm and the height is 15 cm
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Step-by-step explanation:
is triangular prism with sides 12cm,16cm,20cm
S = 12 + 16 + 20= 48/2 =24
Area of the triangle =√s(s-a) (s - b)(s - c)
= √24(24 -12)(24 -16)(24 -20)
=√24(12)(8)(4)=√(12)(2)(12)(2)(4)(4)
= 12 x 2 x4 =96 sq cms
Volume of the prism =1/2 Area of the
base x height
= 1/2 (96)(15) =(48)(15)=
720 cubic cms
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