Geometrymedium · Past Paper
If the side of a square inscribed in a circle is 10 cm, what is the radius of the circle?
A5 cm
B5 * sqrt(2) cm
C10 cm
D10 * sqrt(2) cm
✓ Correct Answer: B — 5 * sqrt(2) cm
Diagonal of square = Diameter of circle. 10 * sqrt(2) = 2r => r = 5 * sqrt(2) cm.
Share this question
More from Geometry
- What is the distance of point (x, y) from the y-axis?
- What is the complement of a 0 degree angle?
- In the figure, PQ is a tangent at A. If angle BAC = 60 degrees (C is on circumference), what is the angle between the tangent and chord AB if it is equal to the angle in the alternate segment?
- What is the distance between the points (2, 3) and (5, 7)?
- If the slope of two lines are m1 and m2, what is the condition for them to be parallel?