# SOLUTION: I have a "lake" which is really an irregular blob kind of shape. There are two points on either side of the "lake", A, and B. I need to know how to find the width of the "lake" wit

Algebra ->  Calculators  -> Pythagorean Theorem Solver, Cartoon Lesson, and practice -> SOLUTION: I have a "lake" which is really an irregular blob kind of shape. There are two points on either side of the "lake", A, and B. I need to know how to find the width of the "lake" wit      Log On

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 Click here to see ALL problems on Geometry Word Problems Question 373472: I have a "lake" which is really an irregular blob kind of shape. There are two points on either side of the "lake", A, and B. I need to know how to find the width of the "lake" without using a boat or getting my feet wet. Thanks (:Answer by ankor@dixie-net.com(15659)   (Show Source): You can put this solution on YOUR website!There are two points on either side of the "lake", A, and B. I need to know how to find the width : Assume you are on the B side of the lake. Mark off a line from B which is 90 degrees from the line of sight to A. Choose a value like 100'. Call that point C Measure the angle from C to a line of sight to A: : To use an example: Line BC = 100', angle C = 50 degrees, Find AB (the width of the lake) : Use the tangent of angle of 50 degrees (side opposite/side adjacent) tan(50) = 1.19 = 100*1.19 = AB 119' = AB; the width of the lake, in this example