u/CommercialAd8476

for example look at this image:

https://preview.redd.it/wf7qvcvm25yg1.png?width=800&format=png&auto=webp&s=b09dbdc46aa80387f7af30c58d853979b577dbed

I know the formula is A=1/2 * B * H and since the shape is not horizontal or vertical we must use the distance formula to figure out the base and height but when I use the distance formula, lets say for this picture using segment AC as the base and segment DB as the height. I'm going to get √61 for base or simplified to a decimal is 7.8 for height I get about 7.2 or just leaving it as √52. if I put that into the Area formula above I get around 28units², but the correct answer is 39units². how? I think I'm doing something wrong with my fractions but I don't know what.

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u/CommercialAd8476 — 24 days ago