Question

circumference of acircleis154cm then its diameter is​

Answer 1

Answer:

Hi friend. Here's your answer.

Step-by-step explanation:

Circumference of a circle =2 pie r

Therefore radius of given circle ---

2 22/7 r=154 cm

44/7 r=154cm

r=154 (7/44)

r=49/2

diameter =49/2 (2)

=49

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Answer 2

Answer:

Circumference=154cm

Circumference=

$2\pi \times r$

$154 = 2 \times \frac{22}{7} \times r \\ 154 = \frac{2 \times 22}{7} \times r \\ 154 = \frac{44}{7} \times r \\ 154 \times \frac{7}{44} = r \\ 3.5 \times 7 = r \\ 24.5 = r$

Radius=24.5

Diameter =24.5×2

=49cm