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2 years ago

The side of an equilateral triangle is given as 8 cm, correct to the nearest centimetre. What is the least possible length of it

s perimeter?

Mathematics

1 answer:

artcher [175]2 years ago

7 0

$\textsf {21 cm}$

$\textsf {If it is correct to the nearest centimeter, then the least side length}\\\textsf {would be 8 - 1 = 7 cm. }$

$\textsf {Then, the least possible perimeter would be :}$

$\mathsf {7 \times 3}$

$\textsf {21 cm}$

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Step-by-step explanation:

First, we have to get rid of brackets by expanding :

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Next you have to collect like terms :

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