AB=BC
AD=CD
TPT= angle ADE =90°
AE=EC
Attachments:
Answers
Answered by
1
Step-by-step explanation:
- in traingle ABD and CBD
- AB = CD
- AD = CD
- DB = DB
- triangle ADB = CBD by sss rule
- DB = BD
- in triangle AED = CED
- AD = CD
- ED = ED ( common
- Angle ADE = angle CDE by SAS rule
- triangle ADE = triangle CDE
- AE = CE
- AE + AD + ED = 180 ( angle sum property)
- AD = AE + ED =180
- 2AD + ED = 180
- ED = 180 ÷2
- angle ade = 90
Similar questions