Question

The area of rectangle is 80 sq cm and its width is 8cm find the length of rectangle

Answer 1

Answer:

Area of rectangle = length × breadth

80 = L × 8

80/8 = L

10 = length answer

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Answer 2

Answer:

ɢɪᴠᴇɴ :-

• Area of rectangle = 80 cm²
• Width = 8 cm

Tᴏ ғɪɴᴅ :-

Length

sᴏʟᴜᴛɪᴏɴ :-

Diagram :-

$\setlength{\unitlength}{1cm}\begin{picture}(0,0)\thicklines\multiput(0,0)(5,0){2}{\line(0,1){3}}\multiput(0,0)(0,3){2}{\line(1,0){5}}\put(0.03,0.02){\framebox(0.25,0.25)}\put(0.03,2.75){\framebox(0.25,0.25)}\put(4.74,2.75){\framebox(0.25,0.25)}\put(4.74,0.02){\framebox(0.25,0.25)}\multiput(2.1,-0.7)(0,4.2){2}{\sf\large 10 cm}\multiput(-1.4,1.4)(6.8,0){2}{\sf\large 8 cm}\put(-0.5,-0.4){\bf A}\put(-0.5,3.2){\bf D}\put(5.3,-0.4){\bf B}\put(5.3,3.2){\bf C}\end{picture}$

As we know that

$\large \sf \: Area \: = Length \: \times breadth$

$\large \sf \: 80 = Length \: \times 8$

$\large \sf \: Length \: = \dfrac{80}{8}$

$\large \sf \: Length \: = 10 \: cm$

Hence :-

Length of rectangle is 10 cm

Know More :-

• Perimeter of rectangle = 2(l + b)
• Perimeter of square = 4s
• Area of square = side²
• Diagonal of rectangle = √l² + b²
• Diagonal of square = √2 × side