20 Pointsss please help i appreciate it <3333 Please write an explanation
A manufacturer makes trusses, or triangular supports, for the roofs of houses. Each truss is the shape of an isosceles triangle in which PQ ≅ PR. The length of the base QR is 4/3 the length of each of the congruent sides. The perimeter of each truss is 70 ft. Find each side length.

What is the length of each side?

.19875994384

step-by-step explanation:

1699/ 8548

45

step-by-step explanation:

e

step-by-step explanation:

an equation by definition has to have two or more variables (x and 2 in this case)

δabc ≅ δdcb by sas because

db ≅ ac . . given (side)

bc ≅ bc . . reflexive property (side)

∠dbc ≅ ∠ acb . . alternate interior angles where transversal bc crosses parallel lines bd and ac (included angle)