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13. Quadrilateral LORD is a square. If NO = 5 -- x, and LR = x - 20, find DO. A 10 B. 20 C. 30 D. 35 ​

13 Quadrilateral LORD Is A Square If NO 5 X And LR X 20 Find DO A 10 B 20 C 30 D 35 class=

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Answer:

A. 10

Step-by-step explanation:

2NO = LR

2(5–x) = x–20

10 – 2x = x – 20

10 + 20 = x + 2x

30 = 3x

30/3 = x

10 = x

LR = DO

DO = |x – 20|

DO = |10 – 20|

DO = | –10 |

DO = 10

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