Question

It is given that AABC = A DEF and AB = 5 cm, /B = 30° and /A= 80°. Find /F and the length of DE.​

Answer 1

Answer:

DE = 5 cm , Angle F = 70 degree

Step-by-step explanation:

Sum of all angles in a triangle = 180 degree

= A + B + C = 180

= 80+30+C=180

= C = 180 - 110

C = 70 degree

if Triangle ABC = Triangle DEF

Then Angle C = Angle F & AB = DE

= Angle C = Angle F = 70 degree

= AB = DE = 5 cm