Mathematics
Vicky2001
2020-04-29 06:45:15
The answer is A I just need help working it out
ANSWERS
FloydLacrue407
2020-04-29 09:25:09

STU + STR = 180 8x + STR = 180 [ STU = 8x ] STR = 180 - 8x STR = SRT [ RS ≈ ST ] Now, In ΔSRT, we have, RST = 7x - 54, STR = SRT = 180-8x Their sum is 180, as it constitutes a triangle. 7x-54 + 2(180-8x) = 180 7x - 54 + 360 - 16x = 180  306 - 9x = 180 9x = 306 - 180 9x = 306 - 180 x = 126/9 x = 14 So, option A is your answer. Hope this helps!

WillP
2020-04-29 09:26:24

So A is the option and also the answer

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