Geometryhard · Past Paper
If a chord of length 16 cm is 6 cm away from the center, what is the length of a chord 8 cm away from the center?
A10 cm
B12 cm
C6 cm
D14 cm
✓ Correct Answer: B — 12 cm
Radius = sqrt(8^2 + 6^2) = 10. New half-chord = sqrt(10^2 - 8^2) = 6. Chord length = 2 * 6 = 12 cm.
Share this question
More from Geometry
- Find the area of a triangle with base 15 cm and altitude 10 cm.
- The condition for three points (x1, y1), (x2, y2), and (x3, y3) to be collinear is that the area of the triangle formed by them must be:
- What is the perimeter of a semicircle with radius 'r'?
- If a triangle has sides of length 'a', 'a', and 'b', it is known as:
- Two circles of radii 5 cm and 3 cm touch each other externally. Find the distance between their centers.