Check sibling questions

We have learnt how to change units like mm to cm, or cm to km

Let’s learn how to change square units as well

45.jpg

 

Hectares

 

Hectare is also a unit used to measure area.

 

1 hectare actually means 1 hecto metre square

        1 hectare = 1 hector metre 2

        1 hectare = 1 hm 2  

 

Also,

  1 hm = 100 m

(1 hm) 2 = (100 m) 2

1 hm 2 = 100 × 100 m 2

1 hm 2 = 10,000 m 2

 

∴ 1 hectare = 10,000 m 2

 

Lets take some examples

 

Find area of rectangle in m 2

Changing Square Units - Part 2

Length = l = 50 cm

Breadth = b = 2000 cm

 

Area = l × b

 = 50 × 2000

 = 1,00,000 cm 2

 = 1,00,000 × (1/100) 2 m 2

 = 1,00,000 × 1/10,000 m 2

 = 10 m 2

 

Find area of rectangle in cm 2

Changing Square Units - Part 3

Length = l = 2 m

  = 2 × 100 cm

  = 200 cm

 

Breadth = b = 10 cm

 

Area = l × b

= 200 × 10

= 2000 sq. cm

= 2000 cm 2

 

Find area in m 2

Changing Square Units - Part 4

Length = l = 500 cm                      

= 500 × 1/100 cm (As 1 cm = 1/100 m)

= 5 m

 

Breadth = b = 3 m

 

Area = l × b

 = 5 × 3

 = 15 sq. m

 = 15 m 2

 

Find area of rectangle in m 2

Changing Square Units - Part 5

Length = l = 2 km

    = 2 × 1000 m       (1 km = 1000 m)

    = 2000 m

 

Breadth = b = 30 m

 

Area = l × b

 = 2,000 × 30

 = 60,000 sq. m

 = 60,000 m 2

 

Find area of rectangle in km 2

Changing Square Units - Part 6

Length = l = 2000 m

  = 2000 × 1/1000 km           (1m = 1/1000 km )

  = 2 km

 

Breadth = b = 4 km

 

Area = l × b

        = 2 × 4

        = 8 sq. km

        = 8 km 2

 

Find area of rectangle in hectare

Changing Square Units - Part 7

Length = l = 6 km

 = 6 × 1000 m     (1km = 1000 m)

 = 6000 m

 

  Breadth = b = 10 m

 

Area = l × b

 = 6000 × 10

= 60,000 m 2

= 60,000 × 1/10,000 hectare    (1m 2 = 1/10,000  hectare)

= 6 hectare

 

Find area of rectangle in hectare

Changing Square Units - Part 8

Length = l = 3 km

Breadth = b = 4 km

 

Area = l × b

= 3 × 4

= 12 km 2

= 12 × 10,00,000 m 2                                             (1km 2 = 10,00,000 m)

= 1,20,00,000 m

= 1,20,00,000 × 1/10,000 hectare           (1m 2 = 1/10,000  hectare)

= 1,200 hectare

 

Change units

50 cm 2  in mm 2

= 50 cm 2

= 50 × 1 cm 2

= 50 × (10 mm) 2               (1 cm = 10 mm)

= 50 × 100 mm 2

= 5,000 mm 2

 

2 ha  in m 2

= 2 hectare

= 2 × 10,000 m 2         (1ha = 10,000 m 2 )

= 20,000 m 2

 

10 m 2  in cm 2

= 10 m 2

= 10 × 1 m 2

= 10 × (100 cm) 2

= 10 × 10,000 cm 2         (1 m = 100 cm)

= 1,00,000 cm 2

 

10 cm 2  in m 2

= 10 cm 2

= 10 × 1 cm 2

= 10 × (1/100  m) 2

= 10 × 1/10000 m 2                       (1 cm = 1/100 m)

= 1/1000 m 2

= 0.001 m 2


Transcript

Normal mm to cm 10 mm = 1 cm 1 mm = 1/10 cm Square units mm2 to cm2 10 mm = 1 cm (10 mm)2 = (1 cm)2 100 mm2 = 12 cm2 100 mm2 = 1 cm2 1 mm2 = 1/100 cm2 cm to m 100 cm = 1 m 1 cm = 1/100 m m to km 1000 m = 1 km 1 m = 1/1000 km cm2 to m2 100 cm = 1 m (100 cm)2 = (1 m)2 10000 cm2 = 1 m2 1 cm2 = 1/10000 m2 m2 to km2 1000 m = 1 km (1000 m)2 = (1 km)2 10,00,000 m2 = 1 km2 1 m2 = 1/10,00,000 km2

Davneet Singh's photo - Teacher, Engineer, Marketer

Made by

Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths and Science at Teachoo.