geometry area | Mathematics | Page 1

rocky sapphire Jun 5, 2025, 12:43 AM

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how do i find the area of these figures

remote ledgeBOT Jun 5, 2025, 12:43 AM

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rocky sapphire how do i find the area of these figures

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teal cairn Jun 5, 2025, 12:44 AM

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rocky sapphire how do i find the area of these figures

Well, what is the area, per se?

rocky sapphire Jun 5, 2025, 12:44 AM

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teal cairn Well, what *is* the area, per se?

the shaded parts

teal cairn Jun 5, 2025, 12:45 AM

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The parts contained inside the boundaries, right?

rocky sapphire Jun 5, 2025, 12:46 AM

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oh yeah

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ig

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but i’m just so lost

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do i just like count the shaded parts

summer grail Jun 5, 2025, 12:52 AM

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rocky sapphire do i just like count the shaded parts

For the first two, yes it will work, but it won’t be too efficient

rocky sapphire Jun 5, 2025, 12:54 AM

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so what’s the formula then

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what’s the actual way to do it

teal cairn Jun 5, 2025, 12:55 AM

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rocky sapphire what’s the actual way to do it

Well, the idea is typically to break them up into shapes you know how to find the areas of.

rocky sapphire Jun 5, 2025, 1:01 AM

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so like a square or rectangle

maiden gull Jun 5, 2025, 1:20 AM

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For example, you can solve the first one like this: you can draw a 9x9 square around it, and then subtract the white areas, which you can easily calculate as the area of multiple right angle triangles + one rectangle.

rocky sapphire Jun 5, 2025, 1:23 AM

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maiden gull For example, you can solve the first one like this: you can draw a 9x9 square ar...

so when u subtract the white areas are they the ones where it’s just completely white

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and not shaded

maiden gull Jun 5, 2025, 1:23 AM

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Well, yeah. The shaded area = big square area - unshaded area.

rocky sapphire Jun 5, 2025, 1:24 AM

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ok so

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the answer is 50 then?

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unless i did it wrong

maiden gull Jun 5, 2025, 1:27 AM

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I got a different answer. Lets do this step by step.

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What is the area of the large square?

rocky sapphire Jun 5, 2025, 1:28 AM

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81

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i just counted the white squares then subtracted that

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i could’ve messed it up by accident tho

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what’d u get

maiden gull Jun 5, 2025, 1:30 AM

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You can't just count squares here, as they're not easily countable.

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Just calculate the areas of all unshaded triangles. The formula is base*height / 2.

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What is the area of the largest right angle triangle (on the left side)?

tight dragonBOT Jun 6, 2025, 2:00 AM

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@rocky sapphire

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#geometry area