Sheet #20

1. 01

   ReferenceDouble bed2 m

   To size upTelevision1.22 m

   Measured Width of a 55-inch 16:9 television

   Its diagonal is 1.40 m, but its width only 1.22 m.

2. 02

   ReferenceOak tree25 m

   To size upSmall car4.05 m

   Measured Length of a supermini car

   A standard parking space is 5 m long and 2.5 m wide.

3. 03

   ReferenceComputer keyboard44 cm

   To size upMatchstick5 cm

   Measured Length of a household match

   The modern safety match dates from 1844.

4. 04

   ReferenceCoconut palm25 m

   To size upWhite rhinoceros1.8 m

   Measured Shoulder height of a male white rhinoceros

   Its horn is made of keratin, like our fingernails.

5. 05

   ReferenceChair90 cm

   To size upQuetzalcoatlus10.5 m

   Measured Estimated wingspan of Quetzalcoatlus northropi

   It is one of the largest flying animals that ever lived.

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