Asked by jana
R,O,C,A are the midpoints of the sides of the rhombus DJSB. if DJ= 16 sq rt of 2 cm and d=120 degrees, what is the perimeter of ROCA?
Answers
Answered by
Vin Mwale
Review your question if it is correctly asked
Answered by
Reiny
In triangle DRA, draw an altitude DK where K is on RA, to get a 30-60-90° triangle
and you should know that the corresponding sides are in the ratio 1 : √3 : 2
So RK/(6√2) = √3/2
x = 3√6
then RA = 6√6
and the perimeter is 24√6
and you should know that the corresponding sides are in the ratio 1 : √3 : 2
So RK/(6√2) = √3/2
x = 3√6
then RA = 6√6
and the perimeter is 24√6
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