Advertisements
Advertisements
Question
Define a triangle.
Advertisements
Solution
A plane figure bounded by three lines in a plane is called a triangle. The figure below represents a ΔABC, with AB, AC andBC as the three line segments.

APPEARS IN
RELATED QUESTIONS
Can a triangle have All angles less than 60° Justify your answer in case.
Is the following statement true and false :
If one angle of a triangle is obtuse, then it cannot be a right angled triangle.
State, if the triangle is possible with the following angles :
125°, 40°, and 15°
Find the unknown marked angles in the given figure:

In the given figure, show that: ∠a = ∠b + ∠c

(i) If ∠b = 60° and ∠c = 50° ; find ∠a.
(ii) If ∠a = 100° and ∠b = 55° : find ∠c.
(iii) If ∠a = 108° and ∠c = 48° ; find ∠b.
Classify the following triangle according to sides:

AB and CD are the smallest and largest sides of a quadrilateral ABCD. Out of ∠B and ∠D decide which is greater.
The number of angles in the following figure is ______.

Can we have two acute angles whose sum is an acute angle? Why or why not?
What is the sum of the measures of the interior angles of any triangle, △ABC?
