Answer:
x = 139
Step-by-step explanation:
The exterior angle is equal to the sum of the opposite interior angle
x = 49 +90
x = 139
the answer is 0.3 in simplest form
Answer:
Yes it's a right triangle
Step-by-step explanation:
IF it's a right triangle
a² + b² will equal c²
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25.5² = 650.25
12² + 22.5² = 650.25
Therefor this IS a right triangle
-3 + 8 would be an option