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Alenkasestr [34]
3 years ago
15

Help i need the value of X

Mathematics
2 answers:
Liono4ka [1.6K]3 years ago
7 0

Answer:

20

Step-by-step explanation:

2x + 10 + 40 + 90 = 180

2x + 140 = 180

180 - 140 = 40

40 / 2

20

x = 20

ziro4ka [17]3 years ago
4 0

Answer:

x = 20

Step-by-step explanation:

The square signifies the angle is 90 degrees.

All triangle interior angles add up to 180 so:

2x + 10 + 40 + 90 = 180

2x + 140 = 180

2x = 180 - 140

2x = 40

x = 20

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