Math, asked by labdhee82, 4 months ago

Find the radii of the circles whose circumference is 15.4cm
Step-by-step explanation.

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Answers

Answered by Legend42

Answer:

circumference = 2πr

$15.4 = 2\pi r \\ 15.4 = 2 \times \frac{22}{7 } \times r \\ \frac{15.4 \times 7}{2 \times 22} = r\\ \underline{\boxed{ 2.45cm \: = r}}$

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Answered by Anonymous

Answer:

=> Circumference of Circle = 15.4 cm ( given )

=> 2 × π × r = 154/10 cm

=> 22/7 × r = 154/10 × 1/2 cm

=> r = 77/10 × 7/22 cm

=> r = 49/20 cm

=> r = 2.45 cm