A figure $ABCDE$ is made up of three right-angled triangles. Given that $AB=80$m, $AD=58$

Question

A figure $ABCDE$ is made up of three right-angled triangles. Given that $AB=80$m, $AD=58$m, $\angle ACB=\angle ADE=90{}^\circ $, $\angle ABC=70{}^\circ $, $\angle AED=53{}^\circ $, find the perimeter, the area, of the figure.

Accepted Answer

(i) $272\text{ m}$ (ii) $3680\text{ m}^2$

Trigonometric Lengths and Area in a Composite Diagram

Trigonometric Lengths and Area in a Composite Diagram

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