The ____________ of a triangle is equal in measure to the sum of interior opposite angles.
The exterior angle of a triangle is ______ in measure to the sum of interior opposite angles.
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The total measure of the three angles of a triangle is _____.
The total measure of the _____ angles of a triangle is 180°.
Sum of the lengths of any two sides of a triangle is greater than the length of the ____.
____ of the lengths of any two sides of a triangle is greater than the length of the third side.
In any right-angled triangle, the square of the length of ______ is equal to the sum of the squares of the lengths of the other two sides.
In any right-angled triangle, the square of the length of hypotenuse is equal to the ____ of the squares of the lengths of the other two sides.
A/an _____________ connect a vertex of a triangle to the mid-point of the opposite side.