Math Problem Statement

parallélogramme NOIR de centre E tel que OR=5.4cm, l'angle OEI=80 degrés et ON=1.5cm

Solution

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Math Problem Analysis

Mathematical Concepts

Geometry
Parallelograms
Angles
Trigonometry

Formulas

Law of Cosines
Law of Sines
Properties of Parallelograms

Theorems

Parallelogram Diagonal Theorem
Trigonometric Angle Calculations

Suitable Grade Level

Grades 9-11