- A
- B25π
- C
- D
Step-by-Step Solution
It splits into 12 triangles with two sides of 5 cm and a 30° angle at the centre: each has area . Total .
Answer: A)
A regular 12-sided polygon is inscribed in a circle of radius 5 cm. What is its area?
Competition practiceGeometry
Master this topic in 30 minutes a day.
Don't just memorise the answer — build a daily practice habit.
Practice 5 Similar Questions Free →All Geometry practice questions
More Geometry practice
At most how many interior angles of a convex polygon can be acute?ABCDEF is a regular hexagon of area 48 cm². What is the area of triangle ACE?Find the point that divides the line segment from A(−1, 7) to B(4, −3) internally in the…In what ratio does the y-axis divide the segment joining (−3, 5) and (6, −1)?For what value of k are the points (k, 3), (2, 1) and (5, 7) collinear?