In triangle ABC DE – middle line. The area of the triangle CDE is 25. Find the area of triangle ABC.
| August 7, 2021 | education
To solve this problem, remember that the middle line of a triangle divides it into a triangle and a trapezoid, the areas of which are 1: 3. Based on the condition, the area of the cut-off triangle is 25 square centimeters, then the area of the trapezoid is:
3 * 25 = 75 square centimeters.
Let’s calculate the area of the whole triangle.
75 + 25 = 100 square centimeters.
Answer: 100 sq. cm.
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.
