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I need to know if A and B are CORRECT and I need HELP WITH C

I need to know if A and B are CORRECT and I need HELP WITH C-example-1
User Manikandan S
by
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1 Answer

7 votes
7 votes

Solving a)

To solve this problem, we need to remember the following property of triangles:

The sum of the internal angles of any triangle has to be equal to 180°.

In this case for the triangle in a) the sum of the internal angles is:


53+68+x

Where x is the unknown angle. This sum has to be equal to 180:


53+68+x=180

Now we need to solve for x.

• To solve for x the first step is to combine the like terms on the left side of the equation:


121+x=180

• Subtract 121 to both sides of the equation:


x=180-121

• Solve the subtraction:


x=59

Answer:

x = 59°

User DrSAR
by
2.6k points