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balandron [24]
3 years ago
11

If QRST is a rectangle, find the value of x if angle Q is equal to 5x+30

Mathematics
2 answers:
Semmy [17]3 years ago
6 0
A rectangle is a four-sided flat shape where every angle is a right angle<span> (90°). 

</span>QRST = 90^0 

5x + 30 = 90   

5x = 60    

5x = 60 / 5

x = 12
kolbaska11 [484]3 years ago
3 0
If QRST is a rectangle then Q = 90°.

Threfore

5x + 30 = 90    |subtract 30 from both sides

5x = 60    |divide both sides by 5

x = 12
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