Area of some circles r given find their diameter:
176sq.cm
(the question is of 40 marks)
Answers
Area of the circle = πr2 ∴ 176 = (22/7) x r2 ∴ r2 = 176 x (7/22) ∴ r2 = 56 ∴ r = √56 … [Taking square root of both sides] Diameter = 2r = 2√56 CM ii. Area of the circle = 394.24 sq. cm … [Given] Area of the circle = πr2 ∴ Diameter = 2r = 2 x 11.2 = 22.4 cm iii. Area of the circle = 12474 sq. cm … [Given] Area of the circle = πr2 ∴ 12474 = (22/7) x r2 ∴ r2 = 12474 x (7/22) ∴ r2 = 567 x 7 ∴ r2 = 3969 ∴ r = 63 …[Taking square root of both sides] ∴ Diameter = 2r = 2 x 63 = 126cmRead more on Sarthaks.com - https://www.sarthaks.com/856420/areas-of-some-circles-are-given-below-find-their-diameters-176-sq-cm-ii-394-24-sq-cm-iii-12474
Answer:
Lake Fields is a townships in Sungai Besi, Kuala Lumpur, Malaysia. This townships was built at the site of the Sungai Besi tin mine lake which was the deepest tin mine lake in Malaysia at that time.