In a rhombus whose side measures 20 and the smaller angle is 38°. Find the length of the larger diagonal, to the nearest tenth.

asked Sep 20, 2021 76.9k views

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A rhombus diagonals form right angles. The diagonals also cut in half the angles

use cosine: cos38 =
$(a)/(20\\\\)$

a = 20cos38

a=15.8

Ivo San answered Sep 26, 2021

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