Question

1) Two circle of radii 4.2em and 3.4cm touch each ther extemally find distance between their centers​

Answer 1

Answer:

Step-by-step explanation:

Hi ,

Let R and r are radii of two circles.

R = 5.5 cm , r = 4.2 cm

If two circles touch externally then,

the distance between two centres

D = R + r

D = 5.5 cm + 4.2 cm

D = 9.7 cm

I hope this helps you.

: )

Answer 2

Answer:

Distance between center of the both circle is 7.6 cm

Step-by-step explanation:

Consider,

R1=4.2 cm

R2=3.4 cm

1 condition is there both circle touches externally each other

hence

distance between center of both circle is

= R1+R2

=4.2+3.4

=7.6 cm