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In rectangle ABCD , m∠CDB=(5x−10)° and m∠ADB=(4x−8)° . Figure shows parallelogram A B C D with vertices named clockwise from bottom left. Segment A C and segment B D intersect at point E. What is the value of x? 8 9 10 12

Respuesta :

Answer:

i need 15 points so 55 its

Step-by-step explanation:

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Answer:

20

Step-by-step explanation:

m=a=90

(4x+10)= 90

4x=10=90

4x=80

x=20

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