The sum of all the internal angles of a hexagon in degrees is
Given:
We need to find the sum of all internal angles of a hexagon.
Concept Used:
The sum of internal angles of an n-sided polygon is given by:
(n − 2) × 180 degrees
Solution:
For a hexagon, n = 6
Sum = (6 − 2) × 180
= 4 × 180
= 720 degrees
Final Answer:
S. Ans. (C) 720
In △ABC, AB = AC = 12 cm, BC = 5 cm and D is a point on AC such that DB = BC. What is the measure of CD?
PQ is a chord in the minor segment of a circle and R is a point on the minor arc PQ. The tangents at the points P and Q meet at the point T. If ∠PRQ =102°, then the measure of ∠PTQ is :
Which of the following statements is wrong ?
In the following table two columns are given. Match column A with column B.
Column A | Column B |
[a] Acute angle | [i] 90° |
[b] Obtuse angle | [ii] 240° |
[c] Right angle | [iii] 30° |
[d] Reflex angle | [iv] 120° |
How many lines of symmetry does the figure have?
Some statements are given about lines of symmetry.
(a) Equilateral triangle has 3 lines of symmetry.
(b) Circle has 2 lines of symmetry.
(c) An isosceles triangle has two lines of symmetry.
(d) A rectangle has two lines of symmetry.
(e) Letter A has one line of symmetry.
Which of the following option correctly describes all the above?
Which of the following statements is false?
In a quadrilateral ABCD, a line segment BD is a diagonal such that AB=CD and ∠ABD=∠CDB. Are the triangles ABD and CDB congruent? If so, by what rule?
A right-angled triangle has a hypotenuse of 13 cm and one leg of 5 cm. A second right-angled triangle is similar to the first, and its hypotenuse is 39 cm. What is the area of the second triangle?
A parallelogram is a quadrilateral in which:
