What is the value of x? show steps

x = 8

Step-by-step explanation:

Chords AB and BD form an inscribed angle so <ABD = 5x

also given mAD = 80

Since inscribed angles are half the measure of their intercepted arc, angle <ABD is equal to 1/2(80 degrees), which is 40 degrees.

Now you have:

<ABD = 40

5x = 40

 x = 8

Answer

x = 8

b

step-by-step explanation:

it have 5 sides and 5 identicle angle.the rest does not have the same property as b.

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