Question: An isosceles triangle is topped by a semicircle, as shown in Figure 18. Find a formula for the area A of the whole figure in

An isosceles triangle is topped by a semicircle, as shown in Figure 18. Find a formula for the area A of the whole figure in terms of the side length r and angle t (radians). (We say that A is a function of the two independent variables r and t.)

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