Two chords
Calculate the length of chord AB and perpendicular chord BC to the circle if AB is 4 cm from the circle's center and BC 8 cm from the center.
Correct answer:
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You need to know the following knowledge to solve this word math problem:
- geometry
- similarity of triangles
- algebra
- quadratic equation
- equation
- system of equations
- expression of a variable from the formula
- biquadratic equation
- planimetrics
- Pythagorean theorem
- right triangle
- circle
- triangle
- chord
Units of physical quantities:
Grade of the word problem:
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