Advertisements
Advertisements
प्रश्न
What is the maximum number of obtuse angles that a quadrilateral can have?
पर्याय
1
2
3
4
उत्तर
3
Explanation:
Sum of interior angles of a quadrilateral is 360°.
An obtuse angle is an angle between 90° and 180°.
So, all the angles can’t be obtuse since then the sum will exceed 360°.
So, maximum it can have 3 obtuse angle.
APPEARS IN
संबंधित प्रश्न
In a quadrilateral, define of the following Interior .
In a quadrilateral, define of the following Exterior .
In Fig. 16.19, ABCD is a quadrilateral.
Name a pair of opposite angles.
Complete the following statement by means of one of those given in brackets against each:
A line drawn from the mid-point of one side of a triangle .............. another side intersects the third side at its mid-point.
In quadrilateral ABCD, side AB is parallel to side DC. If ∠A : ∠D = 1 : 2 and ∠C : ∠B = 4 : 5
(i) Calculate each angle of the quadrilateral.
(ii) Assign a special name to quadrilateral ABCD
The angles A, B, C and D of a trapezium ABCD are in the ratio 3: 4: 5: 6. Le. ∠A : ∠B : ∠C : ∠D = 3:4: 5 : 6. Find all the angles of the trapezium. Also, name the two sides of this trapezium which are parallel to each other. Give reason for your answer.
Two opposite angles of a parallelogram are 100° each. Find each of the other two opposite angles.
Two adjacent angles of a parallelogram are 70° and 110° respectively. Find the other two angles of it.
In a pentagon ABCDE, AB || ED and ∠B = 140°, ∠C = 2x° and ∠D = 3x°. Find ∠C and ∠D
In the given figure.
∠AOE is a/an ______ angle
