Question

The length of a rectangle is twice the breath if it's perimeter is 60m then find it's length

Answer 1

Answer:

hii dear..

Step-by-step explanation:

L=2b

and 2(l+b) =60

so putting l=2b

then

2(2b+b)=60

2×3b=60

b=10

therefore l=20

have a nice day

Answer 2

$\sf\large\underline{Given:}$

• $\rm{Perimeter\:_{(rectangle)}=60m}$

$\sf\large\underline{To\: Find:}$

• $\rm{Length\:_{(rectangle)}=?}$

$\sf\large\underline{Solution:}$

$\tt{\implies Let,\:the\: breadth\:be\:x\:and\: length\:be\:2x}$

$\rm{\implies Perimeter\:_{(rectangle)}=2(length+breadth)}$

$\tt{\implies 2(2x+x)=60}$

$\tt{\implies 2x+x=30}$

$\tt{\implies 3x=30}$

$\tt{\implies x=10}$

$\sf\large{Hence,}$

$\rm{\implies Length\:_{(rectangle)}=2x=2\times\:10=20m}$

$\sf\large\underline{Some\: additional\: information:}$

A rectangle has for angles , side , vertex. It's all angles are equal to 90°. It's opposite sides are parallel. It has two diagonal.