A rectangle is constructed with its base on the diameter of a semicircle with radius 10 and with its two other vertices on the semicircle. What are the dimensions of the rectangle with maximum area?

Yolanda wanted to buy a total of 6 pounds of mixed nuts and dried fruit for a party she paid 21.60 for mixed nuts and 11.90 for dried fruit did yolanda but enough mixed nuts and dried fruit for the party