What is the total measure of all interior angles in a ten-sided polygon?
1440°
Sum of interior angles of an n-sided polygon = \((n-2) \times 180°\)
For n = 10: \((10-2) \times 180° = 8 \times 180° = \mathbf{{1440°}}\)
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Important Questions from Geometry
If the angles of a triangle are in the ratio of 2:3:4, then the difference of the measure of greatest angle and smallest angle is
In ΔABC, ∠A = 90°, AD ┴ BC and AD = BD = 2 cm. The length of CD is
How many lines of symmetry does a rectangle have?
The number of diagonals in each face a cube is
Which of the following is/are the geometric figures with the line of symmetry?
I. Rectangle
II. Isosceles triangle
