One side of the triangle is twice the second, and the third side is equal to 15 cm, the perimeter of the triangle
| November 29, 2020 | education
One side of the triangle is twice the second, and the third side is equal to 15 cm, the perimeter of the triangle is equal to 45 cm. Find the sides that are unknown.
first side – x
second side – 2x
third party – 15cm
perimeter = 45cm;
x + 2x + 15cm = 45cm;
3x = 45-15;
3x = 30cm;
x = 10cm; – first side
10cm • 2 = 20cm – second side
answer: 10cm; 20cm
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.
