Question

the diameter of circle is 3.8 cm find the length of its radius

Answer 1

we know that the radius of the circle is diameter/2

we are already given the diameter

so the length of the radius = 3.8/2 = 1.9

therefore the length of the radius is 1.9 cm

Answer 2

d= 3.8cm

r=d/2

ie. 3.8/2

r= 1.9cm