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What is the converse for If a triangle has a ninety-degree angle then it is a right triangle in math?
If none of the three angles of a triangle is ninety degrees, then it is not a right triangle
What is a thirty sixty ninety triangle?
It is a triangle with 90, 60, and 30 degree angles.
What is the triangle that is equal to the sum of the two opposite angles?
ninety
What is a triangle with three ninety degree angles?
a perometer parallel hicktogon
What do all of the angles of a triangle add up to if one angle is ninety?
The internal angles of any triangle add up to 180 degrees.
How is it call a triangle with two angles that are complementary?
Complementary angles add up to ninety degrees. Triangles must hold 180. Taking these facts together, think of this: you have two angles in a triangle where they add up to ninety. This means that the other angle in the triangle must hold the other ninety. I'm not going to answer your question, but I'll pose you the question you should have asked: What is a triangle called when it has one angle that is exactly ninety degrees?
Is a right triangle an acute triangle?
No, it can't be. 'Acute' means that all the angles are under ninety degrees; therefore, a ninety degree angle would make it impossible to have an acute triangle.
What angles are greater than ninety but less than eighteen?
You mean: What angles are greater than 90, but less than 180. These are obtuse angles
Is it possible to sketch a right equilateral triangle?
No. In an equilateral triangle, all three angles are the same. Since they are not ninety degrees, you can't have a right triangle that is also an equilateral triangle.
Could a right triangle have an actue or obtuse angle?
A right triangle will always have exactly one right angle and two acute angles. It will never have an obtuse angle. The easiest proof of that is the fact that sum of the angles in a triangle is always 180o, and if it's a right triangle, then one of it's angles is 90o, leaving only 90o for the angles of both of the other two. Since they both have to be greater than zero for it to qualify as a triangle, they will always both be less than ninety, and thus always acute.
Does an acute triangle have two right angles?
No, in fact no triangle can have two right angles. The sum of all interior angles of any triangle is 180 degrees. All triangles must have three angles. A right angle is 90 degrees. So if a triangle has two ninety degree angles, there would be no third angle. An acute triangle has all three angles less than 90 degrees. The most common acute triangle is the equilateral 60-60-60 degree triangle.
Why must a right triangle have two acute angles?
A right angle must have two acute angles because since one angle is ninety degrees, than the other two must equal ninety degrees. To make ninety degrees with two angles, both of them must be acute, or less than 90 degrees (each).
