Short answer: B Remark A 45 degree angle means that the height is the same length as part of the base. But which part?
Givens b1 = 9 feet b2 = 23 feet and the 45 degree angle on the right.
Determine the height. The part of the base that is associated with the 45 degree angle is found by subtracting b1 from b2 b2 - b1 = 23 - 9 = 14 So 14 is also the height
Find the Area A = 1/2 (b1 + b2)*h b1 = 9 b2 = 23 h = 14
Area = 1/2(9 + 23) * 14 Area = 1/2 (32) * 14 Area = 16 * 14 Area = 224 <<<< answer
