1 Answer

Gabriel Glauber · Answer 1 · 2022-02-09T17:45:45+0000

Answer:

a. Perimeter of the figure = 80 units

b. Area of the figure = 480 square units

Explanation:

Length of side of octagon

$=2\sqrt {13^2 - 12^2}$

$=2\sqrt {169 - 144}$

$=2\sqrt {25}$

=2* 5

$=10\: units$

a. Perimeter of the figure = 8*10 = 80 units

b. Area of the figure

$= 8 * (1)/(2) * 10 * 12 \\ \\ = 4 * 120 \\ \\ = 480 \: {units}^(2)$

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