chipfrank23 chipfrank23

09-09-2019
Mathematics

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thedemon840 thedemon840

09-09-2019

We firstly calculate the angle at the bottom left of the triangle(theta)..,

; Angle theta...

tan theta = 9/11

Angle theta = tan^-1(9/11)

; Angle theta = 39.3°

Then height x...we then use the smaller triangle..,

; tan (39.3°) = x/5.5

; x = 5.5 tan(39.3°)

Hence... x = 4.5

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