Question

find the diiametre and circumference of a radius is 7.7 cm

Answer 1

hey
________

diameter = 2× radius

diameter = 2×7.7 =15. 4 cm

circumference = 2πr

= 2×22/7×77/10
=44×11/10
= 484/10
= 48.4 cm

hope helped
_________________

Answer 2

Hey friend

Given-:
Radius of Circle=7.7cm

To Find-:
Diameter of Circle=?
Circumference of Circle=?

Solution-:

=>Diameter of Circle= 2×Radius
=>Diameter of Circle= 2×7.7cm
=>Diameter of Circle= 15.4cm

Now,

=>Circumference of Circle= 2×π×Radius
=>Circumference of Circle=2×22/7×7.7
=>Circumference of Circle= 48.4cm


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