the are of circle is 1386m2 find its circumference
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sara62:
it is wrong the answer is 132
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The area of circle = πr²
so, (22/7) * r² = 1386 m²
➡ r² = (1386 * 7) / 22
➡ r² = 63/7
➡ r² = 441
➡ r = 21 m
Now, circumference of circle = 2*π*r
➡ 2*(22/7)*21 = 132 m.
Hope it will help you !!!
so, (22/7) * r² = 1386 m²
➡ r² = (1386 * 7) / 22
➡ r² = 63/7
➡ r² = 441
➡ r = 21 m
Now, circumference of circle = 2*π*r
➡ 2*(22/7)*21 = 132 m.
Hope it will help you !!!
If it helps you, mark as brainliest !!!
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