The radii of two circles are 19 cm and 9 cm,
respectively. Find the radius of the circle which
has circumference equal to the sum of the
circumferences of the two circles.
Answers
Answered by
11
Answer: 28 cm
Step-by-step explanation:circumference of the two circles...
1 circle= 2pie r
=2×22/7×19
=44×19//7
=836/7
2 circle = 2pie r
=2 × 22/7 ×9
=396/7
Sum = 836/7 + 396/7
=1232/7
Now finding a circles radiusnof circumference 1232/7
1232/7=2×22/7×r ( where r is the radius of the new circle which we have to find)
1232×7//7×2×22=r
r=1232/44
r=616/22
r = 308/11
r=28 cm
Hope it help
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3
Answer:
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