Write the perimeter of the triangle as a
simplified expression.
3y + 5
бу
Y-4

Step-by-step explanation:

The formula of a perimeter of a triangle:

We have:

Substitute:

Combine like terms:

10y+1

Step-by-step explanation:

The perimeter is the three sides added together

3y+5+6y+y-4=

10y+1

step-by-step explanation :

we know that

the measurement of the outer angle is the semi-difference of the arcs which comprises

in this problem

m< xzy is the outer angle

substitute the values

the measure of angle xoy is equal to

> by central angle

substitute the value