Quiz
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TIME REMAIN
54:24
Each leg of a 45°-45°-90° triangle measures
What is the length of the hypotenuse?
245°
O
6 cm
672 cm
12 cm
12 cm
122 cm

Adam is building a deck in his backyard around a tree. the deck is in the shape of a regular octagon. in the center of the deck, there is a hole for the tree. if a = 10.9 ft, s = 9 ft, and the diameter of the hole is equal to 7 ft, find the area of the deck to the nearest tenth of a square foot. (use 3.14 as an approximation of pi.)