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Question
Can a triangle have two right angles, and why or why not?(1 point)
Responses
Yes, because 90 + 90 = 180.
Yes, because 90 plus 90 equals 180 .
No, because a triangle must have an obtuse angle.
No, because a triangle must have an obtuse angle.
Yes, because it would be a right triangle.
Yes, because it would be a right triangle.
No, because there needs to be a third angle.
1 answer
The correct response is:
No, because there needs to be a third angle.
In a triangle, the sum of all three angles must equal 180 degrees. If a triangle had two right angles (90 degrees each), the total would be 180 degrees, leaving no room for a third angle, which is necessary to form a triangle. Therefore, a triangle cannot have two right angles.
