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The three angles inside every triangle always add up to 180 degrees,
Since you have a 'right' triangle, it has one right angle in it. That takes care of 90 degrees,
and you have another 90 degrees left.
You also say it's an isosceles triangle ... badly mis-spelled, but we know what you mean.
That tells us that the other two angles are equal. We have 90 degrees to play with,
and the two angles are equal, so each one is 45 degrees.
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How do you name a triangle by its angles than its sides?
An acute angled triangle, right angled triangle or obtuse angled triangle.
A scalene triangle can also be an what triangle?
a scalene can be a right-angled triangle or a obtuse angled triangle or a acute angled triangle depending on the angles of the triangle.
What is an obtuse angled triangle?
An obtuse angled triangle is wider than a right angled triangle. It has 180 degree angles.
What is an acute-angled triangle?
An acute-angled triangle is a triangle in which all the interior angles are between 1 and 89 degrees.
What angles does a isoscles triangle have for example right angles or obtuse or acute?
Any of the above: you can have a right-angled isosceles (not isoscles!) triangle, or an obtuse-angled one or an acute angled-one.
