Math Problem Statement
∠D=90°である、△AEDがあります。辺AE上の点Bから辺ADに垂線を下し、辺ADとの交点を点Fとします。また、EC=5cmとなるように辺DE上に点Cをとります。AF=2cmです。このとき、△ABCの面積を求めてください。
Solution
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Math Problem Analysis
Mathematical Concepts
Geometry
Right Triangles
Area of Triangles
Formulas
Area of a triangle = 1/2 * base * height
Theorems
Pythagorean theorem
Triangle area theorem
Suitable Grade Level
Grades 9-11
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