Math Problem Statement

Angle A of parallelogram ABCD α = 69.2°, AB = 3.58 and AD = 5.46. Let's draw a perpendicular BE from B to side AD and from point E the perpendicular EF to the diagonal BD. Calculate EF.

Solution

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Math Problem Analysis

Mathematical Concepts

Geometry
Trigonometry
Parallelogram properties

Formulas

Law of cosines
Sine rule

Theorems

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Suitable Grade Level

High School