HELP PLEASE I NEED ANSWER ASAP!

Mathematics

2 answers:

stiks02 [169]2 years ago

7 0

Answer:

111.4556

Step-by-step explanation:

Perimeter = 18 + 25 + 18√2 + 43

Perimeter = 86 + 18√2

Perimeter = 86 + 18(1.4142)

Perimeter = 86 + 25.4556

Perimeter = 111.4556

mixas84 [53]2 years ago

3 0

Answer:

86+18 $\sqrt{2}$

Step-by-step explanation:

Use the properties of 45-45-90 triangles to get a side length of 18 for the 2 legs of the isosceles triangle. Then add 43+18, which is the shorter length of the rectangle, +25, which is the longer edge, +18 $\sqrt{2}$ . The answer is now 86+18 $\sqrt{2}$ .

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