Question

A tissue cross-section viewed on a microscope slide shows a cell of almost rectangular shape with dimensions 6.9 × 10-4 cm by 1.1 × 10-3 cm. Calculate the cross-sectional area of the cell. Express the area in powers of ten notation and use the appropriate number of significant digits for the number multiplying the power of 10.

Answer 1

The cross-sectional area is
`A = 7.59 *10^(-11) \  m^2`

Step-by-step explanation:

From the question we are told that

The dimension of the cell is 6.9 × 10-4 cm by 1.1 × 10-3 cm =
`6.9*10^(-6) \ m \ by\  1.1*10^(-5) \  m`

Generally the cross-sectional area is mathematically represented as

`A  =  6.9*10^(-6)   *  1.1*10^(-5)`

=>
`A = 7.59 *10^(-11) \  m^2`