Question

how do i do this question?

Answer 1

Answer:

AD =144/2=72

now L square =BD Ka square+AD KA SQUARE

NOW LSQUARE =(21)^2+(72)^2

LSQUARE=441+5184

LSQUARE=5625

now L =✓5625

L=75

AB=75

According to question the

AB=Bc

so BC is also 75

so BC=75

and this is our answer