Right-angled 64084

A right-angled triangle ABC with sides 5 cm and 12 cm is described by circle k. Calculate the length of circle k in centimeters. When calculating, use π = 3, 14 and round the result to tenths.

Correct answer:

o =  40.8 cm

Step-by-step explanation:

a=5 cm b=12 cm  c2 = a2+b2  c=a2+b2=52+122=13 cm  r=c/2=13/2=213=6.5 cm  o=2π r=2 3.1416 6.5=40.8 cm

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