Question

MARKS: 80
SUBJECT: - MATHS
"SECTION-A
Choose the correct answer:. (Each carry 1Marks)
A wire is in the shape of a square of side 10cm. If the wire is rebent into a
rectangle of length 12cm. Then its breadth is​

Answer 1

Answer:

8 cm

Step-by-step explanation:

Perimeter of square = Perimeter of Rectangle

4 × side = 2( l + b )

4 × 10 cm = 2( 12 + b )

40 cm = 24 + 2b

40 - 24 = 2b

16 / 2 = b

8 = breadth

THEREFORE, THE BREADTH OF THE RECTANGLE IS 8 cm.

HOPE IT HELPS YOU!

Answer 2

perimeter of square wire = perimeter of rectangular wire

4*side=2*(l+b)

4*10=2*(12+b)

40=2*(12+b)

40/2=12+b

20=12+b

20-12=b

8=breadth