Question

PLZ HELP!!! Due today!!
Picture is there!

Answer 1

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 {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)`