Question

find perimeter of a rectangular sheet is 100cm. if the length is 35cm. find its breadth .also find area

Answer 1

Perimeter = 35cm
2(L+B) = 100
L+B = 50
35+B = 50
B = 15cm
Area = 35×15 = 525cm²

Answer 2

Solution :-

Given :-

• Perimeter = 100 cm
• Length = 35 cm
• Breadth = ?

❥ $\sf\green{Perimeter}_{(rectangle)}$ = 2 [ length + breadth ]

❥ 100 = 2 [ 35 + breadth ]

❥ 100 = 70 + breadth

❥ 100 - 70 = breadth

❥ $\sf\fbox\pink{ Breadth \: = \: 30 cm }$

⇰$\sf\green{ Area \: of \: rectangle }$ = Length × Breadth

⇰ 35 × 30

⇰ 1050

⇰ $\sf\fbox\pink{ Area \: of \: rectangle \: = \: 1050 \: cm² }$