Answer:
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Step-by-step explanation:
Answer:
462 cm²
Step-by-step explanation:
<u><em>Area of larger rectangle:</em></u>
=> 42*21
=> 882 cm²
<u><em>Area of smaller rectangle:</em></u>
=> 28*15
=> 420 cm²
<u><em>Area of shaded region:</em></u>
=> 882-420
=> 462 cm²
The common ratio is -5, note that each value is the previous value multiplied by -5.