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Dmitry [639]
3 years ago
12

Picture question middle school math

Mathematics
1 answer:
ludmilkaskok [199]3 years ago
6 0

Answer:

<h2>\huge \: b) \: 59 \: i {n}^{2}</h2>

Step-by-step explanation:

<h3>to understand this</h3><h3>you need to know about</h3>
  • area of triangles
  • area of rectangle
  • PEMDAS
<h3>tips and formulas:</h3>
  • rectangle opposite sides are equal
  • area of rectangle:l×w
  • area of triangle:½×h×b
<h3>let's solve:</h3>

the area of the rectangle is

4×7 in²

28 in²

the area of above triangle is

½×6×7 in²

3×7 in²

21 in²

the area of left side triangle is

½×5×4 in²

2×5 in²

10 in²

therefore,

the area of the polygon is

28+21+10 in²

<h3>59 in²</h3>

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59 degrees!
because you set up your problem: 3c+2+2c-7=90
then combine all like terms: 5c-5=90
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