Question

A rectangular brick has a length of 5 centimeters, a width of 9 centimeters and a height of 20 centimeters.What is the surface area of the brick

Answer 1

the answers is 650

Explanation:

Answer 2

ANSWER
The surface area of the brick is;


`650 \: {cm}^(2)`

EXPLANATION

The dimensions of the rectangular brick are


`l = 5cm`

`w = 9cm`

`h = 20cm`

The total surface area of a rectangular brick is given by,


`T.S.A = 2(lw + lh + hw)`

We substitute the values into the formula to obtain,


`T.S.A = 2(5 * 9 + 5 * 20 + 9 * 20)`


`T.S.A = 2(45+ 100+ 180)`


`T.S.A = 2(325)`


`T.S.A =650 \: {cm}^(2)`