8. Calculate
341) + 35）
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Find the area of the regular hexagon if a side is 20 cm.

In angle pqr find the measure of

Abicycle training wheel has a radius of 3 inches. the bicycle wheel has a radius of 10 inches.approximately how much smaller, in square inches and rounded to the nearest hundredth, is the area of the training wheel than the area of the regular wheel? *