6. Find the perimeter of the triang...
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6. Find the perimeter of the triangle whose sides are (3x+4y=z) units, (+47 ) ums and (44 4 ) units. If the perimeter of the rectangle is (5x-9y+ 2z) units and its length is (3x - 5z) units, find its breadth. 8. What must be subtracted from 15mnt - 24nt to get 23mnt + 2nt??

11th - 12th Class
Maths
Solution
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( operatorname{lem} g+h=(3 n-5 z) ) unile Perimeter of a nectangle ( 2(1 e n g+h+b) ) readth ( Rightarrow 2(3 n-52+mid text { readth })=5 x-9 y+2 z ) ( Rightarrow quadleft(3 x-5 z+text { bre ad }+h=frac{5}{2} x-frac{9}{2} y+2right. ) ( Rightarrow ) Ineadth ( =frac{5}{2} n-frac{9}{2} y+2-(3 n-5 z) ) bueadth ( 2 frac{5}{2} x-3 n-frac{9}{2} y+2+5 x ) ( frac{7-5 u-6 u}{2}-frac{9}{2} y+7 z ) ( left(-frac{x}{2}-frac{9}{2} y+7 zright) ) units
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