Two circles of radii 18 cm and 8 cm touch externally Find the length of the direct common tangent - Maths - Circles

Question

Two circles of radii 18 cm and 8 cm touch externally Find the
length of the direct common tangent ​of the two circles
(make sure to provide an appropriate diagram this time)

Nishima Pasricha · Accepted Answer

Radius of first circle, r1 = 18 cmRadius of second circle, r2 = 8 cmAs both the circles touch externally, thendistance between their centres, d(Oo') = r1+r2 = 18+8 = 26 cmNow, length of direct common tangent = d2-r1-r22 = 262-18-82 = 676-100 = 576 = 24 cm

Two circles of radii 18 cm and 8 cm touch externally. Find the length of the direct common tangent ​of the two circles.(make sure to provide an appropriate diagram this time)

Two circles of radii 18 cm and 8 cm touch externally. Find the length of the direct common tangent of the two circles.(make sure to provide an appropriate diagram this time)