Math Problem Statement

三角形ABCは直角三角形ではないですし、BCの長さも5cmではありません。図の読み取りを失敗していませんか

Solution

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Math Problem Analysis

Mathematical Concepts

Geometry
Triangle Area Calculation
Supplementary Lines

Formulas

Area of Triangle = (1/2) × Base × Height

Theorems

Triangle Area Theorem
Use of Supplementary Lines in Geometry

Suitable Grade Level

Grades 8-10