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Savatey [412]
3 years ago
13

In the diagram the length of segment TR can be represented by 5x-4.

Mathematics
2 answers:
klemol [59]3 years ago
5 0

Step 1

<u>Find the value of x</u>

we know that

TR=RV -------> given problem

in this problem we have

RV=2x+5\\TR=5x-4

so

2x+5=5x-4\\ 5x-2x=5+4\\3x=9\\x=9/3\\x=3\ units

Step 2

In the right triangle TRS

<u>Find the length of the side RS</u>

we know that

Applying the Pythagorean Theorem

TS^{2} =TR^{2}+RS^{2}\\RS^{2}=TS^{2} -TR^{2}

in this problem we have

TS=6x-3\\TR=5x-4

Substitute the value of x

TS=6*3-3=15\ units\\TR=5*3-4=11\ units

RS^{2}=(15)^{2} -(11)^{2}\\RS^{2}=104\ units^2

Step 3

In the right triangle RSV

<u>Find the length of the side VS</u>

Applying the Pythagorean Theorem

VS^{2} =RV^{2}+RS^{2}

in this problem we have

RV=2x+5=2*3+5=11\ units\\RS^{2}=104\ units^2

Substitute in the formula

VS^{2} =11^{2}+104

VS^{2}=225\ units^2

VS=15\ units

therefore

<u>the answer is the option D</u>

the value of the side VS is 15\ units

masya89 [10]3 years ago
4 0

Answer: The correct option is D, i.e., 15 units.

Explanation:

It is given that the  length of segment TR can be represented by 5x-4.

From figure it is noticed that the side TR and RV is equal and the length of segment RV is 2x+5. So,

5x-4=2x+5

3x=9

x=3

The value of x is 3, so the length of side RV is,

2x+5=2(3)+5=11

In triangle TRS and angle VRS,

TR=VR

\angle TRS=\angle VRS=90^{\circ}

RS=RS (common side)

By SAS rule of congruence triangle,

\triangle TRS\cong\triangle VRS

Therefore the side TS and VS are congruent sides.

From figure it is noticed that the length of side TS is 6x-3, therefore the length of side VS is also 6x-3.

VS=6x-3=6(3)-3=15

Hence, the length of side VS is 15 units and option D is correct.

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