AOC and BOD are diameters of a circle, center O. Prove that triangle ABD and triangle DCA are congurent by RHS.

AC=BD ( because diameter always same)

Angle B = Angle C ( they line on the same segment)

Angle A is 90° (because they angle made by diameter)

similarly Angle D is 90°

Triangle ABD and Triangle DCA are congruent by RHS

saving = more money

step-by-step explanation:

if you have 100 bucks, and you want to buy a candy bar, even if you have one at home, if you choose not to buy it, you save.

~courtney