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BigorU [14]
3 years ago
15

MAY SOMEONE HELP PLZ!

Mathematics
2 answers:
JulijaS [17]3 years ago
6 0

Answer:

First pic

ratio =  \frac{62.8}{2 0}  \\  = 3.14

Second pic

< c  + 2x + (3x + 10) = 180 \\  < c = 180 - 3x - 10 - 2x \\  < c = 170 - 5x

Kruka [31]3 years ago
3 0

Answer:

Step-by-step explanation:

<h3>#1</h3>

<u>Circumference equation:</u>

  • C = πd

<u>Circumference to diameter ratio is:</u>

  • C/d = π = 3.14
  • Same result comes from the table
  • Correct choice is B
<h3>#2</h3>

<u>Sum of angles of a triangle is 180°</u>

  • m∠A + m∠B + m∠C = 180°

<u>A and C are equal angles as opposite sides are congruent.</u>

  • 2(3x + 10) + 2x = 180
  • 6x + 20 + 2x = 180
  • 8x = 160
  • x = 20
  • m∠C = 3*20 + 10 = 70°

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Answer:

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balandron [24]

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Step-by-step explanation:

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