Question

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

Answer 1

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°