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8_murik_8 [283]
2 years ago
11

Pls help, I really need this answer!!!!

Mathematics
1 answer:
podryga [215]2 years ago
5 0
If you think about it, an octagon is made up of 8 triangles. So you first find the area of one triangle then multiply it by 8 for the total area:
A=1/2bh
A=1/2(9.9)(12)
A=59.4

59.4 x 8= 475.2

Therefore the total area for the octagon should be 475.2 units^2

Hope this helps !

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