Answer:
The value of x is 22°
Explanation:
STR = (5x-40)°[isoceles triangle]
STR + STU = 180°[straight line angle]
5x° - 40° + 5x° = 180°
10x° = 220°
×° = 220/10
x° = 22°
(Correct me if i am wrong)
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