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2 years ago

Does anyone know the answer to this?!

Mathematics

2 answers:

devlian [24]2 years ago

8 0

Answer:

65°

Step-by-step explanation:

Properties of a triangle:

Triangles always have 3 sides
The sum of the interior angles of a triangle must be equal to 180°.

To solve:

Since the angles inside of a triangle must always be equal to 180, use the following formula to solve:
a + b + c = 180
(The variables can be assigned to any value in this situation)
Since two angles are already given, replace 2 variables:
a + 85 + 30 = 180
Solve the equation by subtracting on both sides:
a = 65
The value of a is the measure of the missing angle. The problem is solved.

dangina [55]2 years ago

8 0

Answer:

the missing angle is 65

Step-by-step explanation:

a whole triangle is 180

subtract the given angles from 180

180

- 85

----------

95

subtract the remaining angle

95

- 30

---------

65

~hope this helped :3~

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