Question

In a right angled triangle abc, bd is an altitude to ac. ∠ abc = 90°, ad = 16 cm and dc = 4 cm. find bd

Answer 1

H²=p²+b²
16²=p²+4²
256=p²+16
256-16=p²
240=p²
√240=p
15.49=p
Hence, bd= 15.49

*sorry if the answer is incorrect*