01 Measure the height of a building using free fall 10
02 Find the maximum height of the ball 14
03 Glass Beads, Drawing a Parabola 17
04 Firefighting Operation on Plains 21
05 Fire Extinguishing Operation on a Slope 24
06 What does water look like when it flows out of a hole in a cylinder? 27
07 Knowing the tangent reveals the height of a building 30
08 Knowing the sine and cosine theorem reveals the width of a building. 34
09 Mack Play Phenomenon 38
Find the 10 sine curve 41

11 Exponential functions that appear surprisingly often 46
12 Infinity to Infinity! 50
Can the Super Bowl be stopped in 8.025 seconds? 55
14 Car climbing ability 58
15 y=x² slope 62
16 Magic Glasses 64
17 Will it really be ⅓? 69
18 Making a Top with a Parabolic Shape 71
19 Making a Top with a Semicircle 82
20 Building a Mobile with a Center of Gravity 87

21 Suspension wires visible to the eye 90
22 Measure the temperature of the coffee 93
23 How long does it take for the water in the bathtub to drain? 96
24 Lanchester's Law 100
25 Inequalities to Check with Your Eyes 107
26 Understanding the matrix through population movement 114
27 Maximum slope of slope 121
28 Draw using salt 129
29 Menelaus' Theorem 133
30 Find the center of gravity 138

31-year-old Won's common point of intersection 142
32 How high will the rope go? 149
33 Measurement of the radius of curvature 152
34 Measure the radius of a sphere using a spherometer 157
35 Fermat's point 163
36 The Curve Drawn by Salt 172
37 Conic Sections 177
38 Find the volume of a prism cut at an angle 181
39 Finding Overlapping Points 186

40 Variant Dice Probability 193
41 Flower Shop in Ukraine 199
42 The odds of a draw are 203
43 Solve the Monmoru Problem 210
44 Approximate value of e obtained experimentally 216
45 Hire the first person? 220
46 Are you a man or a woman? 227
47 Find the heaviest box! 230
48 Monty Hall Dilemma 235
49 Approximate values ​​of pi obtained experimentally (Buffon's needle) 241
50 Approximate value of pi obtained through experiment (probability of being mutually exclusive) 246

51 What are the odds of staying ahead? 251
52 How much change should I prepare? 257
53 Dice Game 267
54 Understanding the average with dice 272
55 Understanding Standard Deviation with Paper Tape 278
56 Arabic Vocabulary Test 285
57 Estimated height 292
58 Feel the salt water concentration! 298
59 Archimedes' Experiment 302
60 Benford's Law 308