We are given a circle with center A. We are given that $BE = 34$ and $CD = 26$. We need to find the length of $AF$. We know that $AF$ is perpendicular to $CD$.

GeometryCirclesChordsPythagorean Theorem
2025/4/29

1. Problem Description

We are given a circle with center A. We are given that BE=34BE = 34 and CD=26CD = 26. We need to find the length of AFAF. We know that AFAF is perpendicular to CDCD.

2. Solution Steps

First, we can find the radius of the circle. Since BEBE is a chord that passes through the center AA, it is a diameter. Thus, the radius rr is half of BEBE, so r=BE/2=34/2=17r = BE/2 = 34/2 = 17.
Since AFAF is perpendicular to the chord CDCD, it bisects the chord CDCD. Therefore, CF=CD/2=26/2=13CF = CD/2 = 26/2 = 13.
Now, we can consider the right triangle ACFACF. We have AC=r=17AC = r = 17 and CF=13CF = 13. We want to find AFAF. Using the Pythagorean theorem, we have:
AC2=AF2+CF2AC^2 = AF^2 + CF^2
172=AF2+13217^2 = AF^2 + 13^2
289=AF2+169289 = AF^2 + 169
AF2=289169AF^2 = 289 - 169
AF2=120AF^2 = 120
AF=120AF = \sqrt{120}
Now, we can approximate the value of 120\sqrt{120} to the nearest hundredth:
AF=12010.9544510.95AF = \sqrt{120} \approx 10.95445 \approx 10.95

3. Final Answer

AF=10.95AF = 10.95

Related problems in "Geometry"

The problem consists of two parts: (a) A window is in the shape of a semi-circle with radius 70 cm. ...

CircleSemi-circlePerimeterBase ConversionNumber Systems
2025/6/11

The problem asks us to find the volume of a cylindrical litter bin in m³ to 2 decimal places (part a...

VolumeCylinderUnits ConversionProblem Solving
2025/6/10

We are given a triangle $ABC$ with $AB = 6$, $AC = 3$, and $\angle BAC = 120^\circ$. $AD$ is an angl...

TriangleAngle BisectorTrigonometryArea CalculationInradius
2025/6/10

The problem asks to find the values for I, JK, L, M, N, O, PQ, R, S, T, U, V, and W, based on the gi...

Triangle AreaInradiusGeometric Proofs
2025/6/10

In triangle $ABC$, $AB = 6$, $AC = 3$, and $\angle BAC = 120^{\circ}$. $D$ is the intersection of th...

TriangleLaw of CosinesAngle Bisector TheoremExternal Angle Bisector TheoremLength of SidesRatio
2025/6/10

A hunter on top of a tree sees an antelope at an angle of depression of $30^{\circ}$. The height of ...

TrigonometryRight TrianglesAngle of DepressionPythagorean Theorem
2025/6/10

A straight line passes through the points $(3, -2)$ and $(4, 5)$ and intersects the y-axis at $-23$....

Linear EquationsSlopeY-interceptCoordinate Geometry
2025/6/10

The problem states that the size of each interior angle of a regular polygon is $135^\circ$. We need...

PolygonsRegular PolygonsInterior AnglesExterior AnglesRotational Symmetry
2025/6/9

Y is 60 km away from X on a bearing of $135^{\circ}$. Z is 80 km away from X on a bearing of $225^{\...

TrigonometryBearingsCosine RuleRight Triangles
2025/6/8

The cross-section of a railway tunnel is shown. The length of the base $AB$ is 100 m, and the radius...

PerimeterArc LengthCircleRadius
2025/6/8