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2 years ago

A quadrilateral has exactly 3 congruent sides, someone thinks it is a rectangle, why is that someone wrong?

Mathematics

1 answer:

Umnica [9.8K]2 years ago

5 0

Answer:

It is because a rectangle has 4 congruent sides.

A rectangle has 4 congruent sides since it has four 90 degrees sides, its corners. This someone say a shape with 3 congruent sides is a rectangle.

This is why it is wrong.

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Answer:

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Step-by-step explanation:

Given

See attachment for circles

Required

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For the inner circle

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So, the ratio of the outer sector to the inner sector is:

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Cancel out common factor

$Ratio = R^2 - r^2 : r^2$

Express as fraction

$Ratio = \frac{R^2 - r^2 }{ r^2}$

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