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choli [55]
3 years ago
15

Plz help will mark you as brainliest(plz answer 42 and 43​

Mathematics
1 answer:
Lisa [10]3 years ago
3 0

Answer:

  • 41. D,
  • 42. B,
  • 43. A

Step-by-step explanation:

Sides are 120 m, 170 m, 250 m

<h3>41.</h3>

<u>S is the semi-perimeter and is equal to:</u>

  • s = (a + b + c)/2 = (120 + 170 + 250)/2 = 270 m

Correct choice is D

<h3>42.</h3>

The area is easy to calculate using the Heron's formula, since we have all three side lengths known.

Correct choice is B

<h3>43.</h3>

<u>Perimeter is:</u>

  • P = a + b + c = 120 + 170 + 250 = 540 m

Correct choice is A

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irina1246 [14]

Answer:

The true statements are

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Step-by-step explanation:

* Lets explain how to solve the problem

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- Look to the attached figure for more understand

* Lets solve the problem

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∴ EH ⊥ AA' and bisect it at F

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4. The line of reflection, EH, is the perpendicular bisector of BB',

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∴ The line of reflection, EH, is the perpendicular bisector of BB',

   AA', and CC' ⇒ <em>True</em>

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4 0
3 years ago
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den301095 [7]

Answer

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Step-by-step explanation:

base(x)

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8 0
3 years ago
There are 35 men and 25 women on a bus. If 20 married couples leave the bus, the number of men is how many times the number of w
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Strike441 [17]
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5 0
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Answer:

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Step-by-step explanation:

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<em><u>If you found this helpful please give it a thanks </u></em>

<em><u>I would also appreciate it if you give me a brainliest</u></em>

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