Pen Ladder

Math problems. Need help?

I am having problems with some of my math questions and need help. Here are the Question: The top of a 16-foot ladder leans against a house. The scale is 7 feet from the base of the house. About how much reaches the house where the stairs? In a three-question "true or false" quiz, you guessed all three questions. What is the probability that you guessed all three questions correctly? Sam wants to fence in some of their farms for their dogs. If Sam has 200 feet of fencing, a pen how provide the maximum area for dogs? A. a circle B. to C. square a rectangle D. a triangle

1. sqrt of 16 ^ 2-7 ^ 2 = 14.38feet 2. probability is 1 / 2 * 1 / 2 * 1 / 2 = 1 / 8 3. I think for CIRCLE given circle has a greater area.

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