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Find the value of x. The diagram is not to scale.

x = 60


x = 15


none of these

x = 21

Find the value of x. The diagram is not to scale. x = 60 x = 15 none of these x = 21-example-1
User IGanja
by
8.2k points

2 Answers

2 votes
x=15 its simple since there's base angles and straight angle
User Royo
by
8.4k points
3 votes
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Isosceles triangle
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∠STR = ∠SRT = 5x - 30

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Adjacent angles on a straight line is 180°
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∠STR + ∠ STU = 180°

(5x - 30) + 5x = 180
5x - 30 + 5x = 180
10x - 30 = 180
10x = 180 + 30
10x = 210
x = 21

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Answer: x = 21
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User Satish Michael
by
8.3k points

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