Question

sanjeev had a house-house 1. the breadth is one-third its length. the perimeter of the rectangular part is 160 m. the perimeter of the triangular part is 80 m. find the length of equal sides of the triangular parts of the house.

Answer 1

Answer:

4mete

Step-by-step explanation:

Here, Length of Rectangular Park =l

Breadth of Rectangular Park =l−3

Altitude of Triangular Park =12

Breadth of Triangular Park =l−3

Now,

A

Rectangle

=l(l−3)

A

Triangle

=

2

1

×12(l−3)

A

Rectangle

−A

Triangle

=4

⇒l(l−3)−

2

1

×12(l−3)=4

⇒l

2

−9l+14=0

⇒(l−2)(l−7)=0⇒l=2,7

Since, breadth is l−3 , l



=2

∴l=7 m and breadth =7−3=4 m

expections:

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