Question

A) find the Surface area

5 cm
12 cm
3 cm
8 cm

Answer 1

Here's the solution,

Surface area :

=》

$\boxed{\mathbf { \footnotesize (2 × area \: of \: triangle) + (3 × area \: of \: rectangle) }}$

=》

$(2 \times \dfrac{1}{2} \times 8 \times 3) + (3 \times 12 \times 5)$

=》

$24 + 180$

=》

$204$

surface area = 204 cm²