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One of the internal angles of the rhombus is 120° and the shorter diagonal is 3.4 meters long. Find the perimeter of the rhombus.

Correct answer:

p =  13.6 m

Step-by-step explanation:

B=120  B2=B/2=120/2=60  BD=3.4 m  cosB/2=aBD/2  a=cosB2°BD/2=cos60° BD/2=cos60° 3.4/2=0.53.4/2=3.4 m  p=4 a=4 3.4=568 m=13.6 m



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Most natural application of trigonometry and trigonometric functions is a calculation of the triangles. Common and less common calculations of different types of triangles offers our triangle calculator. Word trigonometry comes from Greek and literally means triangle calculation.

 
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