# Thus, ZA = ZB = 90, ZECB = ZAEF, ZBEC = ZAFEHence, we can say, ABEC ~ sAFEOr, in other words, triangle T is similar to triangle S ВаTbCсS4Пь

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A rectangular strip of paper of width 4 inches is folded on the dashed line. See the diagram. Certain angles are angled to help solve solutions in part a (show that triangle T is similar to triangle S, answer attached in photos) and part C:

part C: use the diagram to show that tan^-1 2sqrt2 + 2tan^-1 sqrt2 = pi (radians).

Use only the diagram, basic angle facts, and the definitions of tan and tan^-1. In particular, do not use a calculator.

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Step 1

A rectangular strip of paper of width 4 inches is folded on the dashed line.

Step 2

From the geometry, the angles µ and σ are in linear, so

Step 3

Taking tan of bo...

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