They created ratios so people could get information.
The amplitude here would be 5
<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>
Answer:
A child is spinning a rock at the end of a 2-foot rope at the rate of 180 revolutions per minute (rpm).
Step-by-step explanation:
