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Yogita Ingle 5 years, 8 months ago
(2+√20) √5
= 2√5 + √5 √20
= 2√5 +√100
= 2√5 + 10
= 2(√5 + 5)
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Rajesh Sehrawat 5 years, 8 months ago
Yogita Ingle 5 years, 8 months ago
x2 + 4x + 4
= x2 + 2x + 2x + 4
= x(x + 2) + 2(x + 2)
= (x + 2) (x + 2)
= (x + 2)2
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Yogita Ingle 5 years, 8 months ago
For pieces of triangle,
a = 20 cm , b = 50 cm , c = 50 cm
.°. s = a + b + c / 2
= 20 + 50 + 50 / 2
= 120 / 2
= 60 cm
.°. a triangles area = √ s ( s - a ) ( s - b ) ( s - c )
= √ 60 ( 60 - 20 ) ( 60 - 50 ) ( 60 - 50 )
= √ 60 ( 40 ) ( 10 ) ( 10 )
= 200√6 cm²
.°. one colour of five triangles area ,
= 5 ( 200√6 ) cm²
= 1000√6 cm²
so, there are 1000√6 cm² cloth of each colour is required for the umbrella.
Posted by Dolly Kumari 5 years, 8 months ago
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Manish Kumar 5 years, 8 months ago
Yogita Ingle 5 years, 8 months ago
Here are the three numbers whose decimal expansion are non terminating and non recurring:-
1)√2 = 1.4142.........
2) √3 =1.73205......
3) √5 =2.236......
these values are non terminating and non recurring.
thus, we say them as irrational numbers.
Posted by Sudhi Chaudhary 5 years, 8 months ago
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