Not necessarily. But a regular triangle must be acute angled.
Wiki User
∙ 12y agoAn acute angled triangle
An acute angled triangle.
arrowhead :)
|\ |_\ right-angled triangle
An acute triangle
An acute angled triangle
The only polygon with just acute angles is an acute angled triangle.
An acute angled triangle.
yes
arrowhead :)
|\ |_\ right-angled triangle
-- Every triangle, no matter what its shape or size, has three angles inside it that add up to 180 degrees. -- Whyen you say "regular right angled triangle", I hope you don't mean that all three of its sides are the same length ... that's what "regular" usually means in geometry. It's impossible for a right triangle to have all of its sides equal.
right angled triangle
An acute triangle
An isosceles, possibly equilateral, triangle
A right (angled) triangle.
Not true. A triangle with angles of 90, 45 and 45 is a right angled isosceles triangle. If you take a square piece of paper and fold it in half - from corner to corner - you will get this shape.