142=(136+x)/2
142*2= 136+x
284=136+x
284-136=x
148=x
Hence the second girl is 148 cm.
My son is eight years old and he is 1cm. My 11 year old boy is 156cm. (5ft 1) I am 6ft1 Of course the average size depends on the background and country's average height and weight span. For an 11 year old BOY: 141cm - 158cm (4ft 5- 5ft 2) Don't be scared if your small! You will probably grow bigger after - everyone has different growth rates. A girl once was really tall in my class. 161cm. I was 142cm at the time. I looked like a dwarf. But I grew to be 6ft 1 and she grew up to be 5ft 6! Amazing isn't it! Just eat well, sleep for more than eight hours a day and stay healthy and exercise!
~ 4.2 feet ~ 1.28 M ~ 1,280 mm
142cm = 1.42 metres
1420mm
1,420mm
142cm
142cm
142cm
142 cm = 1.42 metre
142 centimeters=1.42 meters
142 Cms. is just under 57 inches.
She is 142cm and weighs 37kg
The width of the board may very. It depends on the board.
It all depends on the race, health and weight a child is. Most websites will tell you it's 4'9 and some websites will tell you it's 4'8... I even encountered a websitedtha claimed the ideal height for an 11 year old boy is 4'4!!! When I was 11, I was 5'6... I am 13 now and I am 6'1. So it really all depends on who you ask...