Justin is using the figure shown below to prove pythagorean theorem using triangle similarity: in the given triangle abc, angle a is 90o and segment ad is perpendicular to segment bc. which of these could be a step to prove that bc2 = ba2 + ca2? a. by segment addition, dc plus ad is equal to bc. b. by segment addition, dc plus ad is equal to ab. c. by segment addition, dc plus bd is equal to bc. d. by segment addition, dc plus bd is equal to ab.

The answer to this question is letter C) By segment addition, DC plus BD is equal to BC. Point D is located at the middle of segment BC. Therefore BC is just equal to BD plus DC.

Now we can prove BC2 = BA2+CA2 by using the Pythagorean theorem.

C.By segment addition, DC plus BD is equal to BC.

Step-by-step explanation:

Here, ABC, angle A is 90° and segment AD is perpendicular to segment BC.

In triangles ADB and ABC,

(right angles)

( reflexive angles)

Therefore,  

Therefore, BA/BD =BC/BA (By the property of similar triangles)

⇒ ------- (1)

Similarly,

⇒--------(2)

After adding equation (1) and (2)

We get

( By segment addition, DC plus BD is equal to BC which is shown in figure)

22.83 repeating

step-by-step explanation:

137 ÷ 6 is 22.8333333 therefore we understand that 3 is repeating.

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step-by-step explanation: