Forest games

Forest games
There was an uproar in the calm forest, and the 16th Forest Games was officially opened! The Forest Games will not only have a variety of sports, but also the wisdom of all animals. Therefore, many small animals want to challenge. There are so many contestants this year! There are little tigers, Weiwei, little monkeys jumping, little foxes round, little bunny Nicole... The sound is like a fairy musician, the Lark, but the announcer of this sports event!
The sports meeting began, and the little rabbit Nicole warmed up on the forest track. The elephant uncle is the referee of the Games. Just listen to it and make a "prepare! Run!" All the athletes like the arrow of the string "咻" and go straight ahead. Bunny Nicole ran to a cornice and suddenly stopped, not knowing which way to run. At this time, the display uploads a voice: "Want to know which way is correct, I will answer my question: a rectangular parallelepiped, 4 centimeters long, 2 centimeters wide and 3 centimeters high. Will the surface area of this cuboid be How many square decimeters?” Nicole said eagerly: “This question is simple. We can calculate one face and one face. One cuboid has six faces, each divided into three groups, each with the same face: one above and below , calculated as 4 × 3 × 2 = 24; then count the front and back, counted as 4 × 2 × 2 = 16; finally calculate the left and right sides, counted as 3 × 2 × 2 = 12, then add them up, calculate 24+16+12=52, this is the surface area of this cuboid.” The display listened to Nicole's analysis and immediately showed: “Congratulations, you are right, the correct route is on the left, continue to work hard, there are still many difficulties behind.” Nicole nodded and ran to the left.
The little rabbit Nicole came to the river and saw that the uncle goat was sitting on the boat and propped the boat. The uncle of the goat touched its long beard kindly and smiled and said: "Oh, if you want to cross the river, you will answer my question! Please listen to the question. The grandfather of the chicken uses a 18.84 meter long fence to surround a semicircular flowerbed. How many square meters is this flower garden?” Nicole was stumped, and it meditated silently: Well, this is a semicircle, can you use the circular area formula to ask for it? Suddenly, it flashed abruptly and immediately blurted out: "The length of the fence is half of the circumference. According to the half of the circumference, half a catty can be obtained, and the area of the circle is further determined. The area of the flowerbed is half of the area of the circle. Therefore, The answer is 56.52!" Uncle Goat was amazed: "You are so smart, get on the boat, cross the river and get to the end. Why are you doing it? Come on!" Nicole thanked Uncle Goat and jumped. Get on the boat and approach the finish.
After getting off the boat, Nicole waved to the uncle of the goat and ran forward. The judges at the end of the meeting are waiting for their first place, and Nicole can win its smart and wise!

Forest games

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