There is no single ratio: the question needs to be more specific.
base by height
The answer depends on what ratio of the triangle you are interested in.
No- a triangle is a plane figure, not a solid.
No.
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.
An angle can have a sine ratio, not a triangle.
base by height
The answer depends on what ratio of the triangle you are interested in.
yes, a triangle is a closed figure
No- a triangle is a plane figure, not a solid.
the ratio of the perimeter of triangle ABC to the perimeter of triangle JKL is 2:1. what is the perimeter of triangle JKL?
if the angle of a triangle are in the ratio 7:11:18,find the angle
No.
The tangent ratio for a right angle triangle is opposite/adjacent.
true
An equilateral triangle
There are 2 triangles in a square so the ratio to square and triangle is 2 to 1