29. Find the length and width of a rectangle having a perimeter equal to 80in and a maximum area a. W = 40, L = 40 b. W = 10, L = 10 c. W = 4, L = 4 d. W = 20, L = 20

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Q: K.

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A: Due to q & a guidelines I will answer for only 1st question

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Q: 21. The area of sector of AOB is 12.25 cm2.

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A: circumference of the circle is given by  C=2πr here given radius is r=14m and use π=227

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Q: 1. Calculate the area of the parallelogram below. 2m 1.8m 2.5m O 3.6 m? O 6.5 m2 O 4.5 m2 O 5 m?

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