f i n d the d i a m a t e r of a c i r c l e whose radias is 85mm

Diameter = 2 times radius.

THANKYOU SO MUCH STAR

You're welcome.

To find the diameter of a circle, you need to know its radius. In this case, the radius is given as 85mm.

The diameter of a circle is twice the length of its radius. So, to find the diameter, you can multiply the radius by 2.

In mathematical terms, the formula for the diameter (D) of a circle is:

D = 2 * r

Where:
D is the diameter of the circle
r is the radius of the circle

Substituting the given value of the radius (r = 85mm) into the formula, we have:

D = 2 * 85mm

Simplifying the equation:

D = 170mm

Therefore, the diameter of the circle, with a radius of 85mm, is 170mm.