Answer:
x = 50°
Step-by-step explanation:
According to exterior angle property of a traingle , measure of exterior angle is equal to sum of it's two interior angles of the triangle. So,
Answer:
38°
Step-by-step explanation:
a²=b²+c²-2bc cos A
5²=3²+7²-2(3)(7) cos A
-33 = -42 cos A
A = (-33/-42)
A = 38°
255 is the answer because 143+86=229, 229+23 is 255
Answer:
405.45
Step-by-step explanation:
405.45
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The year 2018 hope I helped sorry my English sucks so I don't under stand some but I still tryed