Yahoo Answers: Answers and Comments for Need help with 8 and 9 in geometry ? [Mathematics]
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From Anonymous
enUS
Sat, 09 Nov 2019 13:42:45 +0000
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Yahoo Answers: Answers and Comments for Need help with 8 and 9 in geometry ? [Mathematics]
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https://answers.yahoo.com/question/index?qid=20191109134245AAAdSlB
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From 冷眼旁觀: 8.
Sum of interior angles of a triangle = 180...
https://answers.yahoo.com/question/index?qid=20191109134245AAAdSlB
https://answers.yahoo.com/question/index?qid=20191109134245AAAdSlB
Sat, 09 Nov 2019 15:30:55 +0000
8.
Sum of interior angles of a triangle = 180°
(6x  3) + (10x + 8) + (49  2x) = 180
14x = 126
x = 9
m∡G = 6*9  3 = 51
m∡H = 10*9 + 8 = 98
m∡I = 49  2*9 = 31
In a triangle, the greater angle has a greater opposite side.
m∡H > m∡G > m∡I
GI > HI > GH
The answer: D. GH < HI < GI
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9.
In a triangle, the greater angle has a greater opposite side.
m∡A > m∡B > m∡C
Hence, BC > AC > AB
20 mm > AC > 12 mm
A and B is not the answer because AC < 20 mm
D is not the answer because AC > 12 mm
The answer: C. 13 mm

From RealPro: Do you double check your answers?
(6x3) + (10...
https://answers.yahoo.com/question/index?qid=20191109134245AAAdSlB
https://answers.yahoo.com/question/index?qid=20191109134245AAAdSlB
Sat, 09 Nov 2019 15:24:04 +0000
Do you double check your answers?
(6x3) + (10x+8) + (492x) = 180
14x + 54 = 180
x = 9
H = 98°
G = 51°
I = 31
GI > HI > GH D.
Note: nowhere in the problem does it mention degrees. When measures of angles are in degrees, it needs to say °.
9 yes the 2nd longest side is opposite the 2nd largest angle