Question

13. In OO, AB= 20 cm, CD = 4x+8 cm. Solve for x.
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Answer 1

x = 3 cm

Explanation:

The chords that are equal distance from the center are equal.

CD = AB

4x + 8 = 20

Subtract 8 from both sides,

4x = 20 - 8

4x = 12

Divide both sides by 4,

x = 12 ÷4

`\sf \boxed{x = 3 \ cm}`