Question

Try to solve this question (triangle class 10)

---- Explain full of concept​

Answer 1

Step-by-step explanation:

triangleADC similar to triangle BAC

SO ad/ab=ac/cb

100/ad=125/75

166.6

Answer 2

Answer:

heya mate.....

see..

in ∆BDA and ∆BAC....

angle B = angle B (common)

and angle BDA = angle BAC (90°)

SO ∆ BDA~∆ BAC (AA similarity)

and now ...we know that when two triangles are similar then their sides are proportional...soo...

BD/BA=DA/AC=BA/BC

→DA/AC=AB/BC

→DA=AB*AC/BC

→DA=100*75/125

→DA=4*25/5

→DA=4*5

→DA=20 cm

......

hope it helps...

thanks♥♥...

gud nini Π_Π..