PLEASE HELP ME I AM DESPERATE

Mathematics

2 answers:

natka813 [3]3 years ago

7 0

Answer:

Step-by-step explanation:

Perimeter is addition of all the sides

so add them

5+4+4+3+4 =20

Paladinen [302]3 years ago

5 0

Answer: B 5+5=10+4+4+4=12+3 10+12+3 25 lol

Step-by-step explanation:

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A rhombus has sides of length 12 cm and an angle of 72 degrees. Find its area.

Natalka [10]

Diagonals of rhombus are perpendicular
area is (1/2)*d1 * d2 where d1 and d2 are the diagonal lengths
draw the diagonals on your rhombus and you will see a 30-60-90 triangle and then figure
sides will be 6 , 6√3 . 12
so d1 is 2*6 = 12
and d2 is 2*6√3 = 12√3
and area = (1/2)*12*12√3
= 72√3 square cm.

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Answer:

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Step-by-step explanation: