Given that su is the perpendicular bisector of tv , which of the following statements is true?
su is congruent uv by cpctc
tu is congruent to su by cpctc
angle usv is congruent to angle ust by cpctc
angle usv is congruent to angle suv by cpctc

Use the following statements to write a compound statement for the conjunction or disjunction. then find its truth value. p: an isosceles triangle has two congruent sides. q: a right angle measures 90° r: four points are always coplanar. s: a decagon has 12 sides. a) a right angle measures 90° or an isosceles triangle has two congruent sides; true. b) a right angle measures 90° and an isosceles triangle has two congruent sides; true. c) a right angle measures 90° and an isosceles triangle does not have two congruent sides; false. d) a right angle measures 90° or an isosceles triangle does not have two congruent sides; true.