Math
posted by Courtney .
The diameter of a circle is 130 cm, and a chord of the circle is 66 cm long. What is the distance between the chord and the center of the cirlce?

Diameter = 130 cm
Radius = 130/(2) = 65 cm
Chord = 66 cm
half chord = 33 cm
The centre forms an isosceles triangle with the chord, with the two equal sides the radii of the circle.
Consider the right triangle which forms half of the isosceles triangle.
distance from centre to the chord = h
where h²+33²=65²
Solve for h. (Hint: h is an integer)
Respond to this Question
Similar Questions

geometry
suppose the diameter of a circle is 20in. long and a chord is 16in. long. What is the distance from the center of the circle to the chord Draw a radius from the center to the end of the chord. THe draw a radius from the center perpendicular … 
math
The equation of a circle with centre O(0,0) is x^2+y^2=40. The points A(2,6) and B(6,2) are endpoints of chord AB. DE right bisects chord AB at F. a)Verify that the centre of the circle lies on the right bisector of chord AB. b)Find … 
Math
In a circle , the radius is 68 units and a chord of the circle is 120 units. Part A)How far is the chord from the center? 
Math
In a circle , the radius is 68 units and a chord of the circle is 120 units. Part A)How far is the chord from the center? 
Geometry
How would you solve these? The radius of a circle is 34 meters long, and a chord of the circle is 60 meters long. How far is the chord from the center of the circle? 
math
Chord BC is drawn in a circle with a radius of 3cm. Chord BS is 4cm long. Find the perpendicular distance from A to chord BC 
Circle geometry
Please help Explain how I figure this out. A circle has diameter 70cm. A chord in the circle is 50cm long. How far is the chord from the center of the circle? 
math
Is the following statement true or false? 
MATH HELP MS SUE OR SOMEONE
Is the following statement true or false? 
math
AB is a chord of a circle with center O, C is the midpoint of the chord AB, extend OC to the point D on the circle. If OC=CD, what is the measure of angle AOB?