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Readme [11.4K]
2 years ago
7

Question 20

Mathematics
1 answer:
zimovet [89]2 years ago
7 0

9514 1404 393

Answer:

  (d)  A = 18 units²

Step-by-step explanation:

Line CE can be considered to be the base of two triangles. It is 6 units long. The upper triangle is 4 units high, and the lower triangle is 2 units high. The formula for the area of a triangle is ...

  A = 1/2bh

Then the sum of the areas of the two triangles is ...

  A = 1/2(6)(4) +1/2(6)(2) = 12 +6 = 18

The area of the polygon is 18 square units.

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 ——————————

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Step by step solution :

Step  1  :

           4

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Equation at the end of step  1  :

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Step  2  :

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2.1   Subtracting a fraction from a whole

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    3m =  ——  =  ——————

          1        5    

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Adding fractions that have a common denominator :

2.2       Adding up the two equivalent fractions

Add the two equivalent fractions which now have a common denominator

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————————————  =  ———————

     5              5    

Equation at the end of step  2  :

 (15m - 4)

(—————————)2

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Step  3  :

Final result :

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 ———

     52    

Step-by-step explanation:

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