Question

radius of a pencil lead in standard form

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Answer:

0.575 mm

Explanation

Diameter of a pencil lead range from 0.3 to 2 mm.

We will use average value of diameter that is 0.3 + 2 / 2 = 1.15 mm

Formula to calculate radius

Radius = diameter / 2

Plug values in the formula

Radius =  1.15 mm / 2

            = 0.575 mm or 575 x 10$^{-3}$mm