geometry | Mathematics | Page 1

vocal slate Aug 9, 2024, 11:00 AM

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tawny anvilBOT Aug 9, 2024, 11:00 AM

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vocal slate

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rugged canyon Aug 9, 2024, 11:03 AM

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what is the formula for area of triangle?

vocal slate Aug 9, 2024, 11:04 AM

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½b.h?

rugged canyon Aug 9, 2024, 11:06 AM

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ya

vocal slate Aug 9, 2024, 11:06 AM

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And????

rugged canyon Aug 9, 2024, 11:06 AM

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the height for triangle abc and ced would be the same right?

vocal slate Aug 9, 2024, 11:06 AM

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I dont think so

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In which the heigh is the same?

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Can you draw me?

rugged canyon Aug 9, 2024, 11:07 AM

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c to ad

vocal slate Aug 9, 2024, 11:08 AM

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But it is not 90°

vocal slate Aug 9, 2024, 11:21 AM

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rugged canyon c to ad

Oh I see

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Then what should I do?

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We dont have the number

charred crater Aug 9, 2024, 11:49 AM

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I don't remember the name of the formula but

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If two triangles have the a same altitude then the area of those triangles is in the same ratio as that of the ratio of the sides(divided by the altitude)

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and the altitude need not be perpendicular.

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Rather say height.

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You can use that concept here.

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First find the ratio CE:EB

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The area of triangles CED and BDE will be in the same ratio as that of CE and EB, because ED is the common height here.

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Since you know the area CED, you can find the area of BDE and CDB as a whole.

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Then find the ratio AD:DB, the area ACD and CDB will be in that same ratio, now since you know CDB area, you can get ACD area

#geometry