Question

write the formula of surface area and volume. class 9th math. ​

Answer 1

Answer:

Surface area is the sum of the areas of all faces (or surfaces) on a 3D shape. A cuboid has 6 rectangular faces. To find the surface area of a cuboid, add the areas of all 6 faces. We can also label the length (l), width (w), and height (h) of the prism and use the formula, SA=2lw+2lh+2hw, to find the surface area

Whereas the basic formula for the area of a rectangular shape is length × width, the basic formula for volume is length × width × height.

Answer 2

Whereas the basic formula for the area of a rectangular shape is length × width, the basic formula for volume is length × width × height.