A = 2B - 15
But (A + B = 90), so we can substitute (90 - A) in place of B.
A = 2(90 - A) - 15
A = 180 - 2A - 15
A = 165 - 2A
3A = 165
A = 55
B = 35
That depends on the sizes of the other 2 angles if it's a right angle triangle then the other acute angle would be 70 degrees.
It is 90-28 = 62 degrees
Acute triangle Equal triangle
Yes because the measure of each angle in an equilateral triangle is 60 degrees which is an acute angle.
The third angle measures 85⁰ (20 + 75 + 85 = 180) consequently, the triangle is an acute angled scalene triangle
70
Each interior angle of an equilateral triangle measures 60 degrees
That depends on the sizes of the other 2 angles if it's a right angle triangle then the other acute angle would be 70 degrees.
It is 90-28 = 62 degrees
The other acute angle in that triangle is 40 degrees.
67.5 ?
72
180 degrees in a triangle 180 - 90 - 55 = 35 35 degrees
A triangle which measures less than 90%
acute-angled triangle
Acute triangle Equal 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.)