Question

Briefly explain how will you find the Area of regular solid (write formulas)​

Answer 1

Area of regular solid figures

Explanation:

Area is defined as the space occupied by a closed figure.

Solid Figures include:

1. Cuboid :

   C.S.A. - 2h (l+b)

   T.S.A. - 2 (lb + bh + lh)

2. Cube :

   C.S.A. - 4$a^{2}$

   T.S.A - 6$a^{2}$

3. Right Prism :

    C.S.A. - Perimeter of base x height

    T.S.A - 2(Area of base) + C.S.A.

4. Cylinder :

     C.S.A. - 2$\pi rh$

     T.S.A. - 2$\pi r(r+h)$

5. Cone :

     C.S.A. - $\pi rl$

     T.S.A. - $\pi r(r+l)$

6. Sphere : 4$\pi r^{2}$

7. Pyramid :

    C.S.A. - $\frac{1}{2}$ (perimeter of base) x (slant height)

     T.S.A. - Area of base +  C.S.A.