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☆☆☆☆☆A rule or a statement that is accepted without proof is a postulate.
false
1 (APEX)
A triangle is formed by three lines. If the ends of two lines meet to form a right-angle (90 degrees), the third line can only form angles less than 90 degrees.
90 + 45 + 45 = 180 the three angles must total 180 degrees.
Yep. All equilateral triangles are isosceles triangles.
For Apex the answer is “True“.
false
An isosceles triangle must have two sides of equal size.
Since you have a side of 7 and 5, for it to be isosceles, your third side must be either 7 or 5.
No. An isosceles triangle has, by definition, two sides of equal length. A scalene triangle has, by definition, no sides of equal length. So, by definition (and the fact that 0 is not 2), an isosceles triangle cannot be scalene.
That figure is best described as a "triangle".
A triangle with two congruent sides is an isosceles triangle, and a triangle with three congruent sides is an equilateral triangle.
A triangle can be Acute, Obtuse, or Right, depending on the angle. It can be Scalene, Isosceles, or Equilateral, depending on the length of the sides.
This sentence can be complete as: After a congruence transformation the area of a triangle would be the same as it was before.
180 degrees minus interior angle = exterior angle and that the 3 exterior angles of a triangle add up to 360 degrees.
A conditional statement.
i honestly dont know
FALSE
No, it could not. A triangle cannot have a perimeter of length zero.
4 < x < 20
