Question

Essential ICSE Mather
4.
20 m
15 m
9 m
B
Ground
D
Two poles AB and CD stand vertically on
the flat ground. Find BD and CD.​

Answer 1

Step-by-step explanation:

From pythagoras theroem,

BD^2=15^2 - 9^2

BD^2=225-81

BD^2=144

BD=√144

BD=12m

Now apply pythagoras in triangle BCD

CD^2=20^2 - 12^2

CD^2=400-144

CD^2=256

CD=√256

CD=16m

I think this helps u