A ladder leans against the side of a house. The top of the ladder is 20 ft from the ground. The bottom of the ladder is 15 ft from the side of the house. Find the length of the ladder. If necessary, round your answer to the nearest tenth.

Need to finish my juan wants to build a greenhouse in his back yard. he needs to maximize the ratio of floor area to structure volume in order to provide the most room for plants while minimizing the area to be heated. find the description of the structure that best meets juan’s criteria. a.) a hemisphere with a diameter of 12 feet b.) a cube with a side length of 12 feet c.) a cone with a diameter of 12 feet and a height of 10 feet d.) a square pyramid with a base side length of 12 feet and a height of 9 feet