b. A midline of a triangle that joins midpoints of any pair of sides is parallel to the third side.() C. The intersection point of perpendicular bisectors of a triangle is on the triangle() d. The angle between altitude and base that it passes is always 90° degree.( ) e. A midline of a triangle is a segment whose endpoints are the midpoints of two sides of the triangle. ( )
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если не правильно поняла то напиши в ком переделую