Answer:
Step-by-step explanation:
Answer:
Step-by-step explanation:
DE = LK {given that length of DE & LK are equal}
EF = JK {given that length of EF & JK are 8 cm}
DF = LJ { given}
ΔDEF ≅ ΔLKJ by SSS congruent
The sum of the angles of a triangle is 180 degrees.
a + b + c = 180.
a + (a+10) + 2a = 180
3a + 10 = 180
3a + 10 - 10 = 180 - 10
3a = 170
a = 42.5 degrees
b= 52.5 degrees and c = 85 degrees.
