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.
(q∧r) ∨s
a. a right angle measures 90° or four points are always coplanar, and a decagon has 12 sides; false.
b. a right angle measures 90° and four points are always coplanar, or a decagon has 12 sides; false.
c. a right angle measures 90° and four points are always coplanar, or a decagon has 12 sides; true.
d. a right angle measures 90° or four points are always coplanar, and a decagon has 12 sides; true.