Math

posted by .

What is the perimeter of an equilateral triangle with an altitude of 15m?

  • Math -

    s = 2h/√3, so 3s = 2h√3 = 30√3 m

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Math

    A pentagon is formed by putting together three identical equilateral triangles and one larger equilateral triangle with length of edge equal to 2 times that of the smaller equilateral triangle. If the perimeter of the smaller triangle …
  2. math

    you start with an equilateral triangle and then trisect each of the sides with a new equilateral triangle on the middle third of each trisection, repeat the process indefinitely how would you prove that the perimeter is infinite?
  3. MATH!

    how do you solve this plz show me how you do this 1. on her last three quizzes, jane scored 84, 96, and 88. what grade must she get on her next quiz to have an average of 90 for all four quizzes?
  4. Geometry

    the perimeter of an equilateral triangle is 32 centimeters. find the length of an altitude of the triangleto the nearest tenth of a centimeter.
  5. geometry

    An equilateral triangle has an altitude of 15m. What is the perimeter of the triangle?
  6. grade six math

    Draw an equilateral triangle. Divide each side in half and join the points to make four small equilateral triangles. Rearrange these four equilateral triangles into a parallelogram. Compare the perimeter of the original triangle with …
  7. geometry

    An equilateral triangle has an altitude of 15m. What is the perimeter of the triangle. Could someone please explain how to find perimeter. I believe the answer to be 60 sq rt 3m
  8. math

    The perimeter of a square piece of land is twice the perimeter of an equilateral triangle. (an equilateral triangle has three equal sides.) If one side of the square is 45 feet, find the length of the sides of the triangle. 2x + 3 …
  9. Geometry

    The top of a valentine candy box is in the shape of an equilateral triangle if the altitude of the triangle is 8cm what is the perimeter of the triangle
  10. Geometry

    1. One angle of a rhombus measures 60 degrees. If the perimeter ois 20 inches, find the length of both diagonals. 2. An equilateral triangle has an altitude of 18 inches. Find the are and perimeter of the triangle

More Similar Questions