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  Find the area of an equilateral triangle that has a perimeter of 21 inches Round the answer to one decimal place? Find the area of an equilateral triangle that ...
  
  Sal finds a shaded area defined by two equilateral triangles whose side lengths are given. ... And if I wanted to get an approximate answer as a decimal.
  
  Finding the formula for the area of an equilateral triangle with side s. ... 0 energy points ... using one of the sides of the Triangle, then plugged that into the area formula. ... Show all 2 answers to Joshua Hoeflich's question • Answer this question .... 1/2 with the base and height for the right triangle and then if you want to find ...
  
  www.moomoomath.com/How-to-find-the-height-of-an-equilateral-triangle.html
  
  Find the height of an equilateral triangle with side lengths of 8 cm. 8/2 = 4 4√3 = 6.928 cm. When do you use decimals and when do you use the answer with a square root. ... Common Core Standard 6.G.1. equilateral triangle perimeter # perimeter triangle ... Find the area of a equilateral triangle with a side of 8 units. Step 1.
  
  A worked example of finding the area of an equilateral triangle inscribed within a circle ... 0 energy points ... Show all 5 answers to Jerry Stephens's question • Answer this question ... Can someone explain what "sin" is at around 9:40 -- ish? Is there a video on "sin"? If there isn't it would be helpful to add one. Thanks! 6 Votes.
  
  www.algebra.com/algebra/homework/Triangles/Triangles.faq.question.326795.html
  
  SOLUTION: Find the area of an equilateral triangle that has a perimeter of 21 inches. Round the answer to one decimal place. ... So if we know the perimeter of a triangle is 21 inches, we can divide that by 3 to find the length of each side:
  
  www.varsitytutors.com/high_school_math-help/how-to-find-the-area-of-a-hexagon
  
  In this figure, the center point, , is equidistant from all of the vertices. ... We now know that all the triangles are congruent and equilateral: each triangle ... If we find the area of one of the triangles, then we can multiply it by six in order to calculate the area of the entire figure. ... Round the answer to the nearest whole number.