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kvasek [131]
3 years ago
5

Please help ASAP 40 pts

Mathematics
2 answers:
Ne4ueva [31]3 years ago
4 0

Answer:

The answer to your question is   x = 50

Step-by-step explanation:

Data

Equilateral triangle

∠C = x + 10

Process

To solve this problem we must consider these facts about triangles

- The sum of the internal angles in a triangle equals 180°

- All the angles in an equilateral triangle measures the same,

Equations

                    ∠A + ∠B + ∠C = 180°

but

                    ∠C + ∠C + ∠C = 180°

-Simplification

                                    3∠C = 180°

-Substitution

                                3(x + 10) = 180°

-Expand

                                3x + 30 = 180°

-Solve for x

                                3x = 180 - 30

                                3x = 150

                                  x = 150/3

                                  x = 50

kobusy [5.1K]3 years ago
3 0

Answer:

50

Step-by-step explanation:

Equilateral triangles have angles that all measure the same

180/3 = 60

so all angles measure 60

<c = 60

60 = x+10

Subtract 10 from each side

60-10 = x+10-10

x=50

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