Find the square (189.68)
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Given : 189.68
To Find : Square
Solution:
189.68
= 18968/100
(189.68)² = (18968/100)²
= (18968)²/100²
(18968)² = (19000 - 32)²
using (a - b)² = a² - 2ab + b²
= 19000² - 2(19000)(32) + 32²
= 361000000 - 1216000 + 1024
= 361001024 - 1216000
= 35,97,85,024
100² = 10000
(18968)²/100² = 35,97,85,024/ 10000
= 35978.5024
(189.68)² = 35978.5024
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