Одна сторона треугольника равна x, вторая сторона равна x + 1, третья сторона равна x + 2. Если периметр треугольника равен 15, найдите значение x.

  1. 4
  2. 3
  3. 2
  4. 6

📝 Detailed explanation

Используем формулу периметра: x + (x + 1) + (x + 2) = 15 ⇒ 3x + 3 = 15 ⇒ 3x = 12 ⇒ x = 4.
3 / 10 (30%)
Question 3 of 10
← Previous → Next Space — Show answer

🎯 Take a test on the topic «7 вариант | Обязательная математика»

This topic contains 10 questions. Test your knowledge!

🔐 Log in to take the test

📚 All tests by subject «Математика»

View all collections and topics in Математика

Go to subject →

Report an error

Answers are unavailable

This test collection is closed. To get full access, please purchase 🌟 premium

Contact by email