Can a triangle have two right angles, and why or why not?
A) No, because a triangle must have an obtuse angle.
B) No, because there needs to be a third angle.
I put B as the correct answer, because the third angle would never be more than 90 degrees... Correct?
2 answers
Yes, you are correct. According to the definition of a triangle, it is a polygon with three sides and three angles. Therefore, all triangles must have three angles that add up to 180 degrees. If two angles of a triangle are right angles, then the sum of those angles would already be 180 degrees, leaving no room for a third angle. Thus, a triangle cannot have two right angles.
can a triangle have two right angles and why or why not
A. no because there needs to be a third angle
B. yes because it would be a right angle
C. no because a triangle must have an obtuse angle
D. yes because 90+90 = 180
A. no because there needs to be a third angle
B. yes because it would be a right angle
C. no because a triangle must have an obtuse angle
D. yes because 90+90 = 180
1 answer