Question

in triangle abc, angle b =90 and bd perpendicular to ac if dc =7 cm and ad =3 cm then find the lenght of bd

Answer 1

Answer:

BD=3CM

Step-by-step explanation:

Draw a triangle with vertices ABC.Angle 90 at B.

GIVEN,

AD=3CM

DC=7CM

BD is the perpendicular to the side AC.

SO,angle B is bisected into two equal angles.

then,∠ABD=45 and ∠CBD=4

tan 45=opposite side ÷adjacent side

tan 45=1

1=AD÷BD

1÷1=3÷BD

BD=3CM