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marissa [1.9K]
3 years ago
5

I will mark brainliest if correct please answer fast I will give 10 points to the first person who answers

Mathematics
1 answer:
attashe74 [19]3 years ago
4 0

Answer:

99\ in^{2}

Step-by-step explanation:

Area of any triangle could be always calculated as base length multiplied by the height perpendicular to the aforementioned base divided by 2. Therefore:

A = 18 * 11 / 2 = 198 / 2 = 99

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