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Ask QuestionPosted by Karishma Rajani 7 years, 10 months ago
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Posted by Sourav Kushwaha 7 years, 10 months ago
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Soumya Ghoshal 7 years, 10 months ago
Each of the pairs of opposite angles made by two intersecting lines.
OR, Vertical Angles are the angles opposite each other when two lines cross.
Posted by Shekhar Zurange 7 years, 10 months ago
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Hans Raj 7 years, 10 months ago
let us take parallelogram ABCD
AC and BD are two diagonal which are also equal AC = BD
ABCD is a parallelogram , therefore opposite sides are equal AB = CD , AD = BC , Sum of opposite angles = 180o , L B + L D = 180O , LA + LC = 180O
ABC = ADC are congruent (as AB = CD , AD = BC , AC = AC )
similarly BCD = BAD are congruent as BD=BD is common
L B = L D But LB + L D = 180 therefore LB = 90 , LD = 90 , LA = 90 and L C= 90
Hence ABCD is a rectangle
Posted by Parul Lincoln 7 years, 10 months ago
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Riya Agrawal 7 years, 10 months ago
Posted by Satyam Rai 7 years, 10 months ago
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Posted by Satyam Rai 7 years, 10 months ago
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Posted by Shivam Patial 7 years, 10 months ago
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Akshara Chaudhary 7 years, 10 months ago
Sahdev Sharma 7 years, 10 months ago
Given ratio : 3:5:9:13
Let angles are 3x,5x,9x,13x
Sum of all angles of quadrilateral is 360.
So 3x+5x+9x+13x = 360
=> 30x = 360
=> x = 12
Then angles are : 36,60,108,156
Posted by Pallavi Bharti 7 years, 10 months ago
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Posted by Avinash Kumar 7 years, 10 months ago
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Gautam Jain 7 years, 10 months ago
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Nishank Kannaujiya 7 years, 10 months ago
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Anishka Arora 7 years, 10 months ago
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