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A typical blackboard is about 2 meters in length.

Q: What is the length of a blackboard in m or km or cm?

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about 20 cm in length

Km

You have km (kilometers) which is length, and cg (centigrams) which is mass. These two units cannot be converted between each other. Assuming maybe you meant cm (centimeters) instead of cg, then: 1 km = 1000 m & 1 cm = 0.01 m, so 1 cm * [.01 (m/cm)] / [1000 (m/km)] = 0.00001 km = 10-5 km

meters

1 km = 1000 m 1 m = 100 cm 1 cm = 10 mm

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about 20 cm in length

Length of unsharpened pencil is measured in cm . km is a bigger quantity.

Km

It could be either one. I'd have to see the blackboard. If it's 10m, it's in a very large room. If it's 10cm, it's a very tiny blackboard.

from largest to smallest it would be: km, m, cm, mm

You have km (kilometers) which is length, and cg (centigrams) which is mass. These two units cannot be converted between each other. Assuming maybe you meant cm (centimeters) instead of cg, then: 1 km = 1000 m & 1 cm = 0.01 m, so 1 cm * [.01 (m/cm)] / [1000 (m/km)] = 0.00001 km = 10-5 km

Length is used to measure distance or height. It is measured in km , m ,cm.

41.7 km, here's how:Get them into a common unit (try meters).1 m = 100 cm, so (100700 cm) * (0.01 m/cm) = 1007 m.1 km = 1000 m, so (41.7 km) * (1000 m/km) = 41700 m,So 41.7 km is larger.Additional info:To get the conversion factor, look at the equation [1m = 100 cm], then divide both sides by (100 cm) --> 0.01 m/cm = 1 ;So length/length is an non-dimensional factor. Multiplying by 1, does not change the value; you can also divide both sides by 1m --> 1 = 100 cm/m, which you would need to divide by 1: 100700 cm / 1 is the same as (100700 cm) / (100 cm/m) = 1007 m

By unit of length and distance and conversion ,we can say that mm is the length of a finger .

The most common measurements are milimeters,cm, m ,km .Out of these units the basic unit of measuring the length of pencil is cm.

meters

The conversion between km, m and cm are given .On finding the relation we get as follows . we know, 1 km=1000 m=100000 cm. from the above we can conclude , km > m > cm.