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Sagot :

Answer:

The perimeter is 35 units

Step-by-step explanation:

Given

The attached shape

Required

The perimeter of the shape

From the shape, we have:

[tex]AB = 11[/tex]

[tex]AD = 8[/tex]

[tex]BD = AD = 8[/tex] --- sides of an isosceles

Also:

[tex]BC = DC = BD = 8[/tex] --- sides of an equilateral

So, the perimeter (P) is:

[tex]P = AB + BC + DC + AD[/tex]

[tex]P = 11 + 8 + 8 + 8[/tex]

[tex]P = 35[/tex]

Properties of Isosceles triangles

2 sides are equal

2 angles are equal

Properties of equilateral triangles

All sides are equal

All angles are equal