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Zielflug [23.3K]
1 year ago
8

Help me out with this please

Mathematics
1 answer:
makvit [3.9K]1 year ago
4 0
Damian : xE [-2 ; 3)

Range : yE [ 4 ; -5]
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300 Is the correct answer
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Pls help extra points and mark brainlist
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Answer:

the answers are a and d

Step-by-step explanation:

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An equilateral triangle has an apothem measuring 2.16 cm
Llana [10]

Answer:

d)   24.2 cm²

<em>Area of equilateral triangle  A = 24.22 cm²</em>

Step-by-step explanation:

<u><em>Step(i)</em></u>:-

<em> Perimeter of equilateral triangle  = 3 a</em>

Given  Perimeter of equilateral triangle  = 22.45 cm

   now   3 a = 22.45

  Dividing '3' on both sides,we get

             a = 7.48 cm

<u><em>Step(ii):</em></u>-

<em>Area of equilateral triangle</em>

<em>                                   </em>A = \frac{\sqrt{3} a^{2} }{4}<em></em>

<em>                                    </em>A = \frac{\sqrt{3} (7.48)^{2} }{4}<em></em>

<em>                                   A = 24.22 cm²</em>

<u><em>Conclusion</em></u><em>:-</em>

<em>Area of equilateral triangle  A = 24.22 cm²</em>

6 0
3 years ago
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