Answer:
m∠AEB=115°
Explanation:
we know that
Vertical Angles are the angles opposite each other when two lines cross. Vertical angles are always congruent.
In this problem
m∠AEB=m∠CED -----> by vertical angles
substitute the values
![(5x-10)\°=(3x+40)\°](https://img.qammunity.org/2020/formulas/mathematics/high-school/rbzxpfe4s15xjcupbzcpskxm5olzjktwp5.png)
Solve for x
![5x-3x=40+10](https://img.qammunity.org/2020/formulas/mathematics/high-school/1ewmci1ujuy9jwe4snylogd0wmipxlougy.png)
![2x=50](https://img.qammunity.org/2020/formulas/mathematics/high-school/rjlt8jeushtjbo81vezqp1vx2ngbss7win.png)
![x=25](https://img.qammunity.org/2020/formulas/mathematics/high-school/u4xxcasp014x5afmoh88owxfnty4jr97c6.png)
Find out the measure of m∠AEB
m∠AEB=(5x-10)°
substitute the value of x
m∠AEB=(5(25)-10)=115°