Question

find the unknown angle in each triangle ​

Answer 1

Step-by-step explanation:

angle HEG + angle FEG = 180 degree

156 degree + x = 180 degree

x = 180 degree - 156 degree

x = 24 degree

angle FEG = 24 degree

angle EFG + angle FGE + angle GEF = 180 degree (sum of angles of a triangle sum up to 180degree)

y + 19 degree + 24 degree = 180 degree

y + 43 degree = 180 degree

y = 180 degree - 43 degree

y = 137 degree

therefore angle EFG = 137 degree