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McGraw Hill Integrated II, 2012

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McGraw Hill Integrated II, 2012 View details

6. Trapezoids and Kites

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Exercise 2 Page 526

If a quadrilateral is an isosceles trapezoid, then its diagonals are congruent.

5

Practice makes perfect

We want to find the length of WT.

We are given that ZX= 20 and TY= 15. Let's add this information to the diagram. Recall that if a quadrilateral is an isosceles trapezoid, then its diagonals are congruent. Therefore, we know that the sum of WT and TY equals ZX. WT+ TY= ZX Let's solve this equation to find WT.

WT+TY=ZX

ZX= 20, TY= 15

WT+ 15= 20

LHS-15=RHS-15

WT=5

Subchapter links

Exercises p.526-530