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Every equilateral triangle must also be an acute triangle?
Equilateral triangles have angles that all equal 60 degrees. Acute triangles all have an angles that are less than 90 degrees.
How many different isosceles triangles have at least one angle that measures exactly 20?
If one angle measures 20 degrees then the other two angles must each measure 80 degrees and many other similar or congruent isosceles triangles can have the same interior angles.
Can a right triangle have two angles that measure 25 and 60?
no. the angles in a triangle must add up to 180 degrees. The right triangles must have an right angle (90 degrees). If you add up all the angles they will not measure 180 degrees.
Why cant there be a obtuse angle in a right triagle?
A triangles angles must add up to 180 degrees, no more or less
Number of angles in a triangle?
3There are 3 angles in a triangle. All 3 angles must add up to 180 degrees. For more help go on Wikipedia and type in triangles
Every equilateral triangle must also be an acute triangle?
Equilateral triangles have angles that all equal 60 degrees. Acute triangles all have an angles that are less than 90 degrees.
How many different isosceles triangles have at least one angle that measures exactly 20?
If one angle measures 20 degrees then the other two angles must each measure 80 degrees and many other similar or congruent isosceles triangles can have the same interior angles.
Can a right triangle have two angles that measure 25 and 60?
no. the angles in a triangle must add up to 180 degrees. The right triangles must have an right angle (90 degrees). If you add up all the angles they will not measure 180 degrees.
How many degrees does a Traiangle have?
All angle in a triangle add up to 180o. In an equilateral triangle, each of the three angles is equal to 60o; in isosceles triangles, two angles are equal; in scalene triangles, none are the same; in right-angled triangles, one of them must be 90o.
What quadrilateral can be split into 2 triangles so its angles must total 360?
Any. All triangles have 180 degrees, so two will have 360.
Do triangles have two obtuse angles?
No. All angles in a triangle must add up to 180 degrees. An obtuse angle is over 90 degrees. So, two obtuse angles would put you at 182 degrees, minimum.
What shapes do not have any right angles or angles greater than a right angle?
Acute triangles. They can have three angles, all less than 90 degrees (total is 180 degrees).Shapes with more than three sides must have angles of 90 degrees or more because the total of their angles must be 360 degrees (quadrilaterals) or more.
Can an acute triangle be an right triangle?
No, acute triangles must have all angles less than 90 degrees.
What is the most right angles the triangle can have?
Just One, triangles must have 3 angles that add up to a total of 180 degrees, (half a square).
Triangles must have angles but this figure has no angles whai is it?
A circle.
Why cant there be a obtuse angle in a right triagle?
A triangles angles must add up to 180 degrees, no more or less
What are the angles of a 12 sided polygon?
to calculate this, you must find out how many triangles you can draw in to the shape. do this by picking an angle. draw a line to all of the other angles. (for a 12 sided, there would be 9, subtract 3 from any shape to see.) mutiply the number of triangles by 180 degrees. this should be the degrees of the shape. for a 12 sider, the answer would be 1620 degrees.
