Q. 344.0( 4 Votes )

# The angle between the two altitudes of a parallelogram through the same vertex of an obtuse angle of the parallelogram is 30°. The measure of the obtuse angle isA. 100°B. 150°C. 105°D. 120°

Answer :

BE & EF are perpendiculars from the same point

EBF = 300(given)

Sum of interior angles of a quadrilateral = 3600

EBF + BED + EDF + DFB = 3600

EDF = 3600-(900 + 900 + 300)

EDF = 1500 which is an obtuse angle.

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Smart Revision | Let's Revise Properties of Polygon32 mins
Smart Revision | Let's Classify Quadrilaterals and Find their Properties34 mins
NCERT I Quiz on Understanding Quadrilaterals54 mins
Genius Quiz | Understanding Quadrilaterals20 mins
Quiz | Polygon & their Properties46 mins
Members of Quadrilaterals65 mins
Smart Revision | All Types of Quadrilaterals and Their Properties35 mins
Quadrilaterals32 mins
Champ Quiz | Polygons (Quadrilaterals)30 mins
Understanding Scalar and Vector Quantities56 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses