Question

In the diagram, AB = 10 and AC = . What is the perimeter of △ABC?

10 units
10 + units
20 units
20 + units

Answer 1

It would be 20+2 squareroot 10 units

Answer 2

20 + units

Step-by-step explanation

Perimeter is the distance all round a figure.

AB = 10. This is given in the question

AC = √((3-5)²+(4--2)²

= √(4+36)

=√40 = 6.32 units

BC = 5 - -5 = 10 units

Perimeter = AB+AC+BC

= 10+6.32+10

= 26.32 units

From the choices, we do not have an exact answer. The one that mosts suits the perimeter is 20 + units.