0
As the triangle is equilateral, the height can be calculated using Pythagoras:
side2 = (1/2side)2 + height2
=> height = sqrt(side2 - (1/2side)2)
=> height = side x sqrt(3) / 2
So the area can be calculated:
=> area = 1/2base x height
= 1/2side x side x sqrt(3) / 2
= side2 x sqrt(3) / 4
And plugging in the the side of 13cm:
Area ~= 73.2cm2
Still curious? Ask our experts.
Chat with our AI personalities
Blake
Fran
ProfessorAdd your answer:
Earn +20 pts
An equilateral triangle and a square have equal perimeters what is the ratio of the area of the triangle to the area of the square?
If an equilateral triangle and a square have equal perimeters, then the ratio of the area of the triangle to the area of the square is 1:3.
What is the perimeter and area of an equilateral triangle with a side of 8?
Perimeter of equilateral triangle: 24 units Area of equilateral triangle: 27.713 square units rounded to three decimal places
An equilateral triangle has an area of What is the height?
8.7
Area of different shapes of equilateral triangle?
There is only one basic shape for an equilateral triangle. The area can only vary as the length of the sides vary.
What is the Relation between area of an equilateral triangle and area of a regular hexagon with same sides using activity method?
In our example, the area of the equilateral triangle is 1/6 of the area of the regular hexagon
