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3 years ago

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:

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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