1)
MN = TS
2x + 7 = 21
2x = 14
x = 7
2)
m< U = m<D
5x + 4 = 64
5x = 60
x = 12°
3)
QR = MN
5x - 9 = 2x + 6
3x = 15
x = 5
QR = 5x - 9
= 5(5) - 9
= 25 - 9
QR = 16
4)
m<R = m<U
4x - 27 = 2x - 3
2x = 24
x = 12
m<R = 4x - 27
= 4(12) - 27
= 48 - 27
= 21°
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Answers & Comments
1)
MN = TS
2x + 7 = 21
2x = 14
x = 7
2)
m< U = m<D
5x + 4 = 64
5x = 60
x = 12°
3)
QR = MN
5x - 9 = 2x + 6
3x = 15
x = 5
QR = 5x - 9
= 5(5) - 9
= 25 - 9
QR = 16
4)
m<R = m<U
4x - 27 = 2x - 3
2x = 24
x = 12
m<R = 4x - 27
= 4(12) - 27
= 48 - 27
= 21°