Answer:
20 units
Step-by-step explanation:
the perimeter = 7+4+4+5 = 20 units
Answer:

Step-by-step explanation:
Given
Shape: Rectangle
Diagonals: AC and BD

Required
Determine BD
From the question, we understand that the shape is a rectangle and its diagonals are AC and BD
Every rectangle has 2 diagonals, both of which are equal.
This implies that:

Recall that:

Hence,

An algebraic expression is an expression built up from integer constants, variables, and the algebraic operations.