Lisa draws several right triangles and measures the angles. her measurements are shown in the diagram. each right triangle has one right angle (90° angle) and two non-right angles (angles that are not 90° angles). what conjecture(s) could lisa make based on her exploration? select all that apply.

a. right triangles always have two equal sides.

b. the sum of the measures of the two non-right angles of a right triangle is 90°.

c. the sum of the measures of the three angles in a right triangle is 180°.

d. right triangle is always scalene.

e. the two non-right angles of a right triangle are both acute angles.