jkbmxracing jkbmxracing
  • 14-11-2020
  • Mathematics
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Calculate the area of the shaded region in two different ways. Explain the difference between your two methods.

Calculate the area of the shaded region in two different ways Explain the difference between your two methods class=

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mhanifa
mhanifa mhanifa
  • 14-11-2020

Answer:

  • 20 unit²

Step-by-step explanation:

Method 1

Area of trapezium

  • A = 1/2(b1 + b2)h
  • A = 1/2(3 + 7)(4) = 1/2(10)(4) = 20 unit²

Method 2

Area of rectangle - Area of triangle

  • A = lw = 7*4 = 28 unit²
  • A = 1/2bh = 1/2*4*4 = 8 unit²
  • 28 - 8 = 20 unit²
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