07/31/15
From a point inside an equilateral triangle, three perpendiculars are drawn. length of an arm of the equilateral triangle?
From a point inside an equilateral triangle, three perpendiculars are drawn on its three sides measuring 6cm, 8cm and 12 cm. What is the length of an arm of the equilateral triangle?
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07/31/15
I found an answer to my problem but I don't think its simplified. Here it is:
cosine 48= 13/x
.6691=13/x
1/13 ∗ .6691 = 13/x ∗ 1/13
.6691/13=x
Can my answer be simplified further?!? Please help me!
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07/31/15
Which element has a greater reactivity and why?
Sulfur= 16 protons
It is in Group 6 on Periodic table.
Calcium= 20 protons
It is in Group 2 on periodic table.
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