A city park commission recelved a donation of playground equipment from a parents' organization. The area of the
playground needs to be 256 square yards for the children to use it safely. The playground will be rectangular.
In a different plan, the sides can be of any length as long as the rectangular area remains 256 square yards. What
dimensions of the rectangular area provide the least perimeter of fencing?

What is the perimeter of square abcd? units units 28 units 37 units

Statements reasons 1. ab ? cd; ad ? bc 1. given 2. ac ? ac 2. reflexive property 3. ? adc ? ? cba 3. ? 4. ? dac ? ? bca; ? acd ? ? cab 4. cpctc 5. ? dac and ? bca are alt. int. ? s; ? acd and ? cab are alt. int. ? s 5. definition of alternate interior angles 6. ab ? cd; ad ? bc 6. converse of the alternate interior angles theorem 7. abcd is a parallelogram 7. definition of parallelogram what is the missing reason in step 3?

The graph represents f(x)=[x]+3. what is f(-2.2)?