They add up to 90 degrees because there are 180 degrees in a right angle triangle
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.)
72
Two. Two acute angles in a right triangle.
'a' and 'b' must both be acute, complementary angles.
The other acute angle in that triangle is 40 degrees.
Since every type of triangle has a total of 180 degrees of angles, simply deduct the 90 of a right triangle, leaving you with a balance of ___ for the remaining acute 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.)
isosceles means that it has 2 equal sides. The 2 acute angles are 45 and 45.
In a right angled triangle the two other angles are acute.
In a right angled triangle the two other angles are acute.
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A right angled triangle can only have two acute angles.
right triangle an equalangular triangle acute triangle scalene triangle
20, 70 and 90 degrees.
a right triangle has one right angle and two acute angles
Two. Two acute angles in a right triangle.
By using trigonometry that is applicable to a right angle triangle.