Use the table to identify the relationship of the second sentence to the first sentence.1.
if two angles are vertical, then they are nonadjacent angles formed by two intersecting lines.. 2.
if two angles are not vertical, then they are not nonadjacent angles formed by two intersecting lines.
is it contrpositive or inverse or converse or biconditonal or logical equivalent.
co = contrapositive
bi = biconditional
le = logical equivalent
cv = converse
in = inverse
1. if the measure of an angle is 90 degrees, then it is a right angle.
2.the measure of an angle is 90 degrees if and only if it is a right angle.
1.if two angles are vertical, then they are nonadjacent angles formed by two intersecting lines.
2.if two angles are adjacent or are not formed by two intersecting lines, then they are not vertical angles.
1.if a triangle has a right angle, it is a right triangle.
2.if and only if a triangle has a right angle, it is a right triangle.
1.if two angles are complementary, then the sum of their measures is 90 degrees.
2.if the sum of the measures of two angles is 90 degrees, then the two angles are complementary.
1.if a line has a bisector of an angle, then it divides the angle into two equal angles.
2.if a line divides an angle into two equal angles, then it is a bisector of the angle.
1.if two angles are complementary, the sum of their measures is 90 degrees.
2.two angles are complementary angles if and only if the sum of their measures is 90 degrees.
1.if a quadrilateral is a square, then it is a parallelogram.
2.if a quadrilateral is a parallelogram, then it is a square.
1.if a number is negative, then it is less than zero.
2.if a number is not negative, then it is not less than zero.