# Polygons News Update

### An Absolute Must Read

## Page 2 of the Content - New Items Tuesday evening

Beginning on page 2 of Polygons Section 2, there are some issues with the content.

The first is the description of a rectangle; it states that ABCD is a square, but actually shows a rectangle. Assume ABCD is a rectangle, not a square for this example.

## Page 3 of the Content - New items Tuesday Evening

**Theorem Isosceles Trapezoid Diagonals,**you are asked to find the length of diagonals and angles for isosceles trapezoid CDEF but the picture shown is rectangle ABCD, so it is not possible to do so.

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Also, the very next diagram shows a triangle to demonstrate the midsegment theorem for trapezoids. (Obviously this is the wrong picture.)

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Just below that you're asked to find AD, which I imagine is supposed to be the midsegment of a trapezoid, but a picture of a parallelogram is shown.

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Also on page 3, KITE is defined with a picture of a square instead of a kite. It then asks you to use the following kite to answer a question and a rectangle is shown.

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Next, under **Theorem Kite Diagonals **you are given the theorem, then given kite ABCD with measurements of 8, 8, 8, 16 and some explanations on finding BC, CD, and the measure of <BAD. This diagram is fine, but it doesn't match the measurements in the explanations at all.

## Page 4 of the Content - New Items Tuesday Evening

Under AREA OF A TRIANGLE, you see a picture of a rectangle. (wrong.) You are then asked to find the area of RTSU, but you're given a parallelogram that does not have any letters attached to it, so it's not possible.

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Under AREA OF A KITE, a picture of a rectangle is shown. (wrong again.) You are then asked to find the area of trapezoid EFGH and given a picture of a rectangle AND to find the area of kite ABCD and given a picture of a square, so obviously again, you cannot do so.

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Do note that the last two examples on page 4 are ok.