Question

class 10
PLZZ give correct answer.....​

Answer 1

Step-by-step explanation:

BD=AB (angleA=D=45°)

let BC be x m

AB=BD=40+x m

tan 60°=AB/BC

root3=40+x/x

x^3=40+x

so, x=40/^3-1

BC=40/^3-1 m

AB=40 (1+1/^3-1) m

Hope it will help you Mark me brainlist. ...

Answer 2

Heyya!

Here's the answer:)