Question

the surface area of an equilateral triangular prism is 810sq.cm, height being 30cm find it's TSA and Volume​

Answer 1

Step-by-step explanation:

Given: a=4cm and h=8cm; to find L.S.A and T.S.A

We know L.S.A=Ph=3×a×h=3×4×8=96cm^2 .

Further T.S.A=2B+Ph=2( 4 a2 )+3ah=root 3/4^2+96≈(8×1.73)+96=109.84cm^ 2

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Thus the total surface area is approximately 109.84cm^2

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