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In the figure below not drawn to scale. DC is a tangent to the circle. DC = 6cm, AB = 5cm. Calculate BC.

In the figure below not drawn to scale. DC is a tangent to the circle. DC = 6cm, AB = 5cm. Calculate
BC.
fig551962019332.png

Answers


Kavungya
62 = x(5 + x)
x2 + 5x – 36 = 0
(x – 4)(x + 9) = 0
x = 4 or -4
BC = 4cm
Kavungya answered the question on June 19, 2019 at 12:35

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