Question

if ABIIDE, angle ABC=115º and angle BCD=55°, then find the value of x​ pls give me elaborated answer​

Answer 1

Answer:

120°

Step-by-step explanation:

Solving Method -

∠BCD = ∠ABC - (180 -∠CDE)

55 = 115 - (180 - x)

55 = 115 - 180 + x

55 = - 65 + x

55 + 65 = x

120 = x

x = ∠CDE = 120°

Chking Method -

∠BCD = ∠ABC - (180 - ∠CDE)

∠BCD = 115 - (180 - 120)

∠BCD = 115 - 60

∠BCD = 55

55 = 55

LHS = RHS

Hope it helps you mate..

:)

Answer 2

Answer:

hii!!! what's going on??

Step-by-step explanation:

#ero{fashion♡queen}