Question

Length of rectangle is twice its breadth and diagonal is measure 10 root 5 find perimeter

Answer 1

Answer:

Step-by-step explanation:

Consider length as l and breadth as b.

So l=2b.

Diagonals square=length square+breadth square

So 500=L square+b square

500= b square+4b square

5b square=500

b square=100

b=10

So l= 2*10=20cm

Perimeter of a rectangle= 2 (l+b) units

= 2 (20+10) cm

= 2*30 cm

= 60 cm

Hence Perimeter of the rectangle is 60 cm.

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Answer 2

60

Step-by-step explanation:

Let the length and breadth of rectangle be l and b.

Then;

Length=2b

A/q

Diagonal of square=length of square+breadth of square

500=4b square+b square

500=5b square

b=10

Length=2b=20

Therefore: perimeter=2(l+b)

=2(20+10)

=60