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A triangle has the sides of 13 15 and 17 Is it right acute or obtuse?
It's acute. Sum the squares of the shorter two sides and compare to the square of the longest side. If the sum is less, the triangle is obtuse. If they are equal, the triangle is right angle. If the sum is more, the triangle is acute. 132 + 152 = 169 + 225 = 394 172 = 289 Sum is more so triangle is acute.
What is a triangle with all acute angles and exactly two congruent sides?
By Definition, a triangle with two Congruent Sides is an Isosceles Triangle. For ALL angles to be Acute, that is, LESS than 90o , the two opposite angles must be greater than 45o. Remember that the SUM of the angles in a Triangle must equal 180o.
What is the sum of the angles of right angles?
Right angles are 90°. The total measure of a triangle is 180°. So, the sum of the other two angles must equal 90°.
Show an example of a triangle with an obtuse angle and a right angle?
This is not possible. If a triangle is a Right angled triangle then the sum of the two angles which are not right will be = 90 [Angle Sum Property] That's why you see.
Two angles whose sum is 90?
acute and acute
