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In triangle STR, angle TSR measures 45 degrees and angle SRT is a righ

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Math Expert
Joined: 02 Sep 2009
Posts: 58427
In triangle STR, angle TSR measures 45 degrees and angle SRT is a righ  [#permalink]

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11 Feb 2019, 02:19
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Difficulty:

25% (medium)

Question Stats:

77% (00:59) correct 23% (01:11) wrong based on 30 sessions

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In triangle STR, angle TSR measures 45 degrees and angle SRT is a right angle. If SR is 20 units long, how many units is TR?

(A) 10

(B) $$10 \sqrt{2}$$

(C) 20

(D) $$20 \sqrt{2}$$

(E) 40

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Re: In triangle STR, angle TSR measures 45 degrees and angle SRT is a righ  [#permalink]

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11 Feb 2019, 04:22
Bunuel wrote:
In triangle STR, angle TSR measures 45 degrees and angle SRT is a right angle. If SR is 20 units long, how many units is TR?

(A) 10

(B) $$10 \sqrt{2}$$

(C) 20

(D) $$20 \sqrt{2}$$

(E) 40

SR and RT are sides of an isosceles right triangle

hence, SR = RT = 20

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Re: In triangle STR, angle TSR measures 45 degrees and angle SRT is a righ   [#permalink] 11 Feb 2019, 04:22
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