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Mathematics 15 Online
OpenStudy (anonymous):

BC is tangent to circle A at B and to circle D at C. What is AD to the nearest tenth? 24.5 24.0 24.3 25.6

OpenStudy (anonymous):

OpenStudy (mathstudent55):

Turning the pertinent part of the picture upside down makes it easier to understand. |dw:1432004329111:dw|

OpenStudy (mathstudent55):

CD is 4, not 5. |dw:1432004438852:dw|

OpenStudy (mathstudent55):

|dw:1432004468899:dw|

OpenStudy (mathstudent55):

Notice that triangle AED is a right triangle, and you know the lengths of the legs. You can find the length of the hypotenuse, AD.

OpenStudy (anonymous):

thank you (:

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