Question

Given that △ABC ≅ △DEF , m∠E=3y+20, m∠B= 10 +5y, and m∠A=5y , answer the following:

y=
m < A=
m< E=

Answer 1

y=5

m<A= 25

m<E= 35

Explanation:

since <E equals <B due to CPCTC the equation:

3y+20=10+5y

is the equation