Height in inches = XV=15 Area of a triangle = base length times perpendicular height divided by 2 An equilateral triangle has three equal sides with three equal interior angles of 60o An equilateral triangle can be considered as being two right angled triangles joined together. So we can make use of trigonometry to find the base length: opposite/tangent = adjacent length of the right angled triangle 15/tangent 60o = 8.660254038 inches Base length of the equilateral triangle = 8.660254038*2 = 17.32050808 inches Area = 17.32050808*15/2 = 129.9038106 square inches Therefore the area of the equilateral triangle is 130 square inches which is correct to three significant figures. Answered by David Gambell, Merseyside, England.
Equilateral triangles have 3 perpendicular bisectors
No
No but a right angle triangle does
Yes in equilateral triangle.
None
No. a equilateral triangle does not have perpendicular sides.
No. a equilateral triangle does not have perpendicular sides.
An equilateral triangle doesn't have any perpendicular sides on it.
Equilateral triangles have 3 perpendicular bisectors
no a equilateral triangle does not have any perpendicular sides because the lines are joined together.
no
No
No but a right angle triangle does
Yes in equilateral triangle.
equilateral triangle
None
none