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harkovskaia [24]
3 years ago
14

The measures of the angles of △RST are given by the expressions in the table.

Mathematics
2 answers:
Andreyy893 years ago
3 0
X=34
angle s=38
angle t= 111
DedPeter [7]3 years ago
3 0
Here, we know sum of all the angles in a triangle is equal to 180
31 + x+4 + 3x+9 = 180
4x + 44 = 180
4x = 180 - 44
x = 136 / 4
x = 34

Angle S = x+4 = 34+4 = 38
Angle T = 3x+9 = 3(34)+9 = 111

Hope this helps!
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