They are the angles that are greater than 0 but less than 90 degrees
Three parallel vertical lines. A bit like triangle ABC | triangle DEF, except that the lines are closer together.
Triangle
An Acute Triangle
If you mean what type of triangle has perpendicular lines then it is right angle triangle.
that would be an isosceles triangle, although the def. of an isosceles triangle is: a triangle that has at least 2congruent sides.
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translate, rotate, reflect, & dilate
It is the point (-2, -3).
A triangle if not found congruent by CPCTC as CPCTC only applies to triangles proven to be congruent. If triangle ABC is congruent to triangle DEF because they have the same side lengths (SSS) then we know Angle ABC (angle B) is congruent to Angle DEF (Angle E)
in triangle def side de equals 5 and angle d equals 55 find fe
The longest side of a triangle is opposite its largest angle.
It will be a right angle triangle with a 90 degree angle and 2 acute angles
They are the angles that are greater than 0 but less than 90 degrees
This type of triangle is a scalene triangle
Three parallel vertical lines. A bit like triangle ABC | triangle DEF, except that the lines are closer together.
Any type of triangle determined by its angle can be an isosceles triangle. A scalene or right triangle can't.