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FinnZ [79.3K]
3 years ago
7

Help with question 4. Pls give working as well ​

Mathematics
1 answer:
anzhelika [568]3 years ago
7 0
  • Answer:

<em>98 cm²</em>

  • Step-by-step explanation:

<em>A(parallelogram) = PR×CD</em>

<em>252cm² = PR×18cm</em>

<em>PR = 252cm²/18cm</em>

<em>= 14 cm</em>

<em>PR = diameter => radius = d/2 = 14cm/2 = 7 cm </em>

<em>A(circle) = π×r²</em>

<em>= 22/7 × (7cm)²</em>

<em>= 22/7 × 49cm²</em>

<em>= 154 cm²</em>

<em>A(shaded) = A(parallelogram) - A(circle)</em>

<em>= 252cm² - 154cm²</em>

<em>= 98 cm²</em>

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