Question

Plzzz tell ans but not for points​ okkkkay if u ans for points i will report

plz telllllll

Answer 1

Given

• ΔABC with ∠A = 90°
• ΔADC with ∠D = 90°
• The two triangles share same angle ∠C

With two same angles the triangles are similar according to AA similarity postulate:

• ΔABC ~ ΔDAC

As we know if triangles are similar then their corresponding sides have same ratio:

• AC/CD = BC/AC ⇒ AC*AC = BC*CD ⇒ AC² = BC*CD