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Seyed Nasrollahi

An enthusiast Physics and Maths tutor with 5 years of teaching experience.

1785Students helped
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Maths

Asked by Nicole · 2 years ago

The lengths of a rectangle have been measured to the nearest tenth of a centimetre they are 87.3cm and 51.8cm what is the upper bound for the area and the lower bound for the perimeter?

We need to work out the upper and lower bounds for each side given: 87.3 Upper bound : 87.35 Lower bound :87.25 51.8 Upper bound :51.85 Lower bound :51.75 We know the area of a rectangle is width*length so for the upper bound for the area we multiply the upper bound fo width and the upper bound of length together: So 87.35 * 51.85 = 4529.1cm^2 We know that the perimeter is each side of the rec... more

Seyed's profile picture

Seyed Nasrollahi

An enthusiast Physics and Maths tutor with 5 years of teaching experience.

1785Students helped
1Questions answered
£75Per hour