Stages of solving problems on a computer
Answers are for parents and teachers.
1
Find the hypotenuse of a right triangle with legs 5 cm and 12 cm (Pythagorean theorem: c² = a² + b²).
13
2
A lamp is connected to 220 V and its resistance is 440 Ω. Find the current I = U / R and divide the problem into stages.
0.5 A: given U, R; model I = U / R; I = 220 / 440 = 0.5.
3
At which stage is the algorithm written in a programming language?
At the fourth stage – programming.
4
A garden is a rectangle 12 m × 8 m. How many metres of fence are needed to go around it (the perimeter)?
40