Question

find the length of rectangle if B and they are given. • b=300cm,a=600cm² • b=300cm,a=1200cm² • b=800cm,a=1400cm² • b=700cm,a=2100cm² • b=950cm,a=2500cm² • b=700cm,a=1450cm² ​

Answer 1

Answer:

Perimeter of a rectangle = 2×(Length+Breadth)

(i) Length = 16.8 cm

Breadth = 6.2 cm

Perimeter = 2×(Length+Breadth)

= 2×(16.8+6.2) =46 cm

(ii) Length = 2 m 25 cm

=(200+25) cm (1 m = 100 cm )

= 225 cm

Breadth =1 m 50 cm

= (100+50) cm (1 m = 100 cm )

= 150 cm

Perimeter = 2×(Length+Breadth)

= 2×(225+150) =750 cm

(iii) Length = 8 m 5 dm

= (80+5) dm (1 m = 10 dm )

= 85 dm

Breadth = 6 m 8 dm

= (60+8) dm (1 m = 10 dm )

= 68 dm

Perimeter = 2×(Length+Breadth)

= 2×(85+68) =306 dm

Step-by-step explanation:

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Answer 2

Answer:

1 length= 600/300=2cm

2 length=1200/300=4cm

3 length=1400/800=1.75 cm

4 length=2100/700=3cm

5 length=2500/950=2.63 cm

6 length=1450/700=2.07 cm