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Oh, what a happy little triangle we have here! If one angle is a cozy 90 degrees, that means the other two angles will add up to 90 degrees as well. So, they will be two smaller angles that when added together equal 90 degrees, creating a lovely balance in our triangle. Just remember, there are no mistakes, just happy little angles to discover!
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ProfessorIf a triangle has one 90 degree angle, it is classified as a right triangle. The other two angles in a right triangle must add up to 90 degrees since the sum of the angles in any triangle is always 180 degrees. Therefore, the other two angles in a right triangle are acute angles, each measuring less than 90 degrees.
Well, honey, if you've got a triangle with one 90-degree angle, that's what we call a right triangle. The other two angles have to add up to 90 degrees to keep things all nice and tidy, so they'll be less than 90 degrees each. So, grab your calculator and subtract 90 from 180 to find out the measure of those other two angles. Math can be a real hoot, can't it?
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Which triangle contains a 90 angle?
A right triangle contains one 90 degree angle and the other angles must add to 90 because the sum of the angles in a triangle is 180 degrees.
How do you classify a triangle by its angles?
If all three angles of a triangle measure less that 90 degrees (if all three angles are acute), the triangle is an acute triangle. A triangle that has a right angle (an angle the measures exactly 90 degrees) is a right triangle. (The other 2 angles will be acute angles.) A triangle that has an angle that is greater than 90 degrees (an obtuse angle), is an obtuse triangle. (The other 2 angles will be acute angles.)
One angle of an isosceles triangle measure 100 degree what are the measures of the other two angles?
40 degrees each
Why can some isosceles triangles be ringt angle triangles?
An isosceles triangle only requires that two of its inside angles be equal to eachother. Therefore, a right angle triangle (90 degree inside angle) with two 45 degree inside angles on the the two other corners would be considered an isoceles triangle. However, this would be the ONLY right angle triangle that would be considered an isoceles triangle since all inside angles must add up to 180 (90+45+45=180).
How do you get 90 degree angles in 1 triangle?
There are 180 degrees in a triangle - the sum of the angles totals 180 . So there can only be on 90 angle. The other two angles must add up to 90. Pythagoras theorem states " The square of the hypotenuse of a RIGHT ANGLED (90 degrees) triangle equals the sum of the squares on the other two sides". So if you have a 3-4-5 or a 5-12-13 triangle and their multiples etc, you will have a triangle with a 90 degree angle.
