Geometrymedium · Past Paper
A chord is 8 cm long and its distance from the center is 3 cm. What is the diameter?
A5 cm
B10 cm
C12 cm
D15 cm
✓ Correct Answer: B — 10 cm
Radius = sqrt(4^2 + 3^2) = 5 cm. Diameter = 2 * 5 = 10 cm.
Share this question
More from Geometry
- Which theorem states that for any triangle ABC and a line intersecting sides AB, BC, and CA at points C', A', and B' respectively, (AB'/B'C) * (CA'/A'B) * (BC'/C'A) = 1?
- Calculate the area of a triangle with sides a=7, b=8, c=9.
- An arc of length 15 cm subtends an angle of 45 degrees at the center. Find the radius.
- In an isosceles triangle, if the vertical angle is 100 degrees, what are the base angles?
- A bicycle wheel makes 5000 revolutions in moving 11 km. What is the diameter of the wheel?