Which of the following best describes an indirect proof? use definitions and postulates to deduce a conclusion. just accept a statement as true. assume a statement true and then show it must be false.

(c) Assume a statement is true and show that it must be false.

Step-by-step explanation: In mathematics, particularly in geometrical proofs, we apply different methods to prove a theorem or a result. For example-

(i) Sometimes, we use existing definitions and postulates to arrive at a conclusion. This is a type of direct method of proof, and so, option (a) is incorrect.

(ii) Accepting a statement to be true is not a part of the proof. So, option (b) will also not work.

(iii) First assuming a particular statement to be true and then showing it to be false (arriving at a contradiction) is a type of indirect proof. We call it the method of contradiction.

Thus, the correct option is (c).

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step-by-step explanation:

the multiples of 15 are 15, 30,45, 60, 75, 90, 105, 120, 135, 150, 165, 180, 195,   210, 225, 240, 255, 270, 285, 300, 315, 330, 345, 360, 375,   390, 405, 420, 435, 450, 465, 480, 495, 510, 525, 540, 555, 570, 585, 600, 615, 630, 645, 660, 675, 690, 705, 720, and 735.

the factors of 15 are 1, 3, 5, and 15.

hope that , fam!

-une, your fren : )