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tester [92]
4 years ago
10

Help please, my teacher is horrible at explaning

Mathematics
2 answers:
Alex_Xolod [135]4 years ago
8 0

the answer is C u add them up and u get your answer

Inessa05 [86]4 years ago
6 0

10 hours and 10 minutes

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A triangle is a three-edged polygon with three vertices. It is a fundamental form in geometry. The correct option is A.

<h3>What is a triangle?</h3>

A triangle is a three-edged polygon with three vertices. It is a fundamental form in geometry. The sum of all the angles of a triangle is always equal to 180°.

The length of different sides are:

AB = \sqrt{(5-1)^2+(-4-2)^2} = \sqrt{16+36} = \sqrt{52}\rm\ units

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