Payal Tandon
Co-founder, e-GMAT
Welcome to e-GMAT Support!
I am Payal, Co-Founder of e-GMAT.
Feel free to ask any Query.
We will be contacting you soon on

## OGQR 2020: Question No. 92

In the figure above, lines are drawn at the vertices of the quadrilateral as shown. What is the sum of the degree measures of the marked angles?

### Solution

#### Given

In this question, we are given

• The figure of a quadrilateral, in which lines are drawn at the vertices of the quadrilateral.

#### To Find

We need to determine

• The sum of the degree measures of the marked angles.

#### Approach & Working

We can say

• The sum of the marked angles = Total angles on the 4 straight lines ā Sum of the interior angles of the quadrilateral.
• Sum of interior angles of polygon of 4 sides = (4 – 2) *1800 =3600
• Hence, sum of the marked angles = 4 * 180Ā° – 360Ā° = 720Ā° – 360Ā° = 360Ā°

Hence, the correct answer is option B.

Did you know a 700+ GMAT Score can increase your chances to get into your dream business school? We can help you achieve that. Why donāt you try out our FREE Trial? We are the most reviewed online GMAT Preparation company in GMATClub with more than 2000 reviews as of January 2021.