Question

the following figure angle abc is equal to 90 degree and BD perpendicular to AC if ad = 8 cm CD = 2 cm and then find the length of BD​

Answer 1

Answer:

BD = 4 cm

Step-by-step explanation:

ΔABC is an right angled triangle and AC is the hypotenuse.

BD ⊥ AC, so BD is a perpendicular to the hypotenuse and A-D-C

So BD² = AD x DC   ( property of geometric mean)

BD² = 8 x 2

BD² = 16

Therefore BD = 4 cm

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