Answer:
x = 90
Step-by-step explanation:
Remember you have to post complete questions in order to get good and exact answers. So here I'll assume a diagram shown below. From the statement. we know that:
△MAD ≅ △SUN
This implies that triangle MAD is congruent to triangle SUN meaning that corresponding sides and angles measure the same. In other words:
∠M = ∠S
∠A = ∠U
∠D = ∠N
And:
MA = SU
AD = UN
MD = SN
So, from the figure:
∠S = ∠M = 30°
As the sum of internal angles of every triangle measures 180°, then:
∠S + ∠U + ∠N = 180°
And:
∠U = x°
So:
30° + x° + 60° = 180°
x° = |80° - 30° - 60°
x° = 90°
So:
x = 90
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Brainliest?, also let me know if i am wrong, Good Luck.