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CBSE Class 8 Answered

The perimeter of an isoceles triangle is 90m.If the length of the two equal sides is 3 / 4 of the length of unequal side , find the dimensions of the triangle.
Asked by pranjalnayak10 | 15 Jan, 2021, 11:15: PM
answered-by-expert Expert Answer
begin mathsize 16px style Let space the space length space of space unequal space side space of space an space isosceles space triangle space be space straight x space straight m. The space perimeter space of space an space isosceles space triangle space is space 90 straight m space....... given 3 over 4 straight x plus 3 over 4 straight x plus straight x space equals space 90 rightwards double arrow fraction numerator 10 straight x over denominator 4 end fraction equals space 90 rightwards double arrow straight x space equals space 360 over 10 equals space 36 space 3 over 4 straight x space equals space 3 over 4 left parenthesis 36 right parenthesis equals space 3 cross times 9 space equals space 27 space Therefore comma space the space length space of space the space three space sides space of space straight a space triangle space be space 36 straight m comma space 27 straight m space and space 27 straight m space respectively. end style
Answered by Yasmeen Khan | 18 Jan, 2021, 05:41: PM

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