Find the total surface area of this prism where
the cross-section is an isosceles triangle.

Answer:
Solution,
Total surface Area( T.S.A)
= 2 * two inclined rectangles+ 2* two triangles + rectangular base
[tex] = 2(10 \times 13) + 2( \frac{1}{2} \times 24 \times 5) + 24 \times 10 \\ = 2 \times 130 + 2 \times 60 + 240 \\ = 260 + 120 + 240 \\ = 620 \: {cm}^{2} [/tex]
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