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The Angles of a Triangle Are Arranged in Ascending Order of Magnitude. If the Difference Between Two Consecutive Angles is 10°, Find the Three Angles. - Mathematics

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प्रश्न

The angles of a triangle are arranged in ascending order of magnitude. If the difference
between two consecutive angles is 10°, find the three angles. 

उत्तर

Given that,
The difference between two consecutive angles is `10^@`
Let x,x+10,x+20 be the consecutive angles differ by `10^@` 

W.K.T sum of all angles of traingle is `180^@` 

`x+x+10+x+20=180^@` 

`3x+30=180^@` 

⇒ `3x=180-30^@ ⇒ 3x=150^@` 

⇒`x=50^@` 

∴ `x=50^@` 

∴ The required angles are 

x,x+10 and x+20 

x=50 

x+10=50+10=60 

x+20=50+10+10=70  

The difference between two consecutive angles is `10^@` then three angles are ` 50^@,60^@ and 70^@` 

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  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 11: Triangle and its Angles - Exercise 11.1 [पृष्ठ १०]

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आरडी शर्मा Mathematics [English] Class 9
अध्याय 11 Triangle and its Angles
Exercise 11.1 | Q 7 | पृष्ठ १०
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