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In triangle ABC, angle A = 90^@, AD is t...

In `triangle ABC`, `angle A = 90^@`, AD is the bisector of `angle A` meeting BC at D and `DE bot AC` at E. If AB =10cm and AC = 15 cm, then the length of DE, in cm is:
`triangle ABC`में `angle A=90^@`, AD, `angle A` का द्विभाजक है, जो BC से D पर मिलता है, और `DE bot AC` से E पर मिलता है। यदि AB = 10 cm और AC= 15 cm है, तो DE की लंबाई(cm) है,

A

7.5

B

6.25

C

6

D

8

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