Question

Use the above diagram to answer the following questions.

Answer 1

Remember that the sum of the interior angles is 180. Then, we have the following equation:

`55^(\circ)+65^(\circ)\text{ + }\angle M\text{ = 180}`

This is equivalent to:

`120^(\circ)\text{ + }\angle M=180^(\circ)`

solve for M-angle:

`\text{ }\angle M=180^(\circ)-\text{ 120}^(\circ)=60^(\circ)`

Then, te correct answer is :

`\text{ }\angle M^{}=60^(\circ)`