Am I retarded, I can't do my sisters 7th grade math. Can a Yea Forumsro help me out here?

Am I retarded, I can't do my sisters 7th grade math. Can a Yea Forumsro help me out here?

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I graduated HS, but can't do this shit wtf

Your triangle is 3 wide and 3 tall, so the area of a triangle being base * height / 2 means it has an area of 4.5 square units. That help?

okay dumbfuck. Lets call the points going left to right 1, 2, and 3. Calculate the area of the rectangle that covers 1 and 2, then cut it in half -- then calculate the area of the area that covers 2 and 3 and then cut it in half. Add those numbers together. That is the area of the shape you have. Then you just need to figure out the multiplier this bitch lin used to get to a shape of an area of 72.

god damn it be less retarded.

This is simple geometry. Just google how to calculate triangle's areas

its not a right triangle dingus

Area is 4.5, so scale factor is 16, and length of bottom is 48?

>my sisters 7th grade math
Nice try, pipsqueak!

you may be retarded

It's two right triangles back to back. Durp

a. 72/4.5
b. sqrt (72/4.5)
c. 3

and you just gave the equation for a right triangle.....like talking to a brick wall
there's equations for these problems but they are in precal/cal. Op is a faggot

im 19

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Okay retard the Area is 4.5, so scale factor is 15, and length of bottom is 50?

you think the base is 48. so (48*48) /2 is supposed to equal 72. try again

based way of getting Yea Forums to do your homework
going to use this excuse now

Well.

Triangle A has area 3 * 3 / 2 = 4.5

So the scaled version has 72 / 4.5 = 16 times larger area.

Since base and height are equal, in any scaled version of this triangle, they will be equal. So in the scaled version: x * x / 2 = 72 means x = 6. In the original image the base = 3. So that means Lin applied a scale factor of 2.

The length of the bottom side is 3 as I just said above.

Too easy.

There are two right triangles in the 9 square area triangle a is in. Subtract them from the 9 and voila, area of a.

Yes you might actually be retarded. Sorry.

a) 16
b) 4 : 1
c) 12 units

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I'm so confused, i believe /b is just as retarded as I am

1/2 b*h where b is 3 and h is 3, so 9/2
72*2 is 144, which is 12^2/2 which means it's 4 times as wide/tall.

Its triangle

Me, just answers

This guy gets it. Explanation should be good enough if you are not actually potato.

Ok, we'll do it your way

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It's a contrived problem. No way to solve for triangle a directly. Ergo, you must look at the problem from a different view, and no. All of b isn't as retarded as you

correct answer already given. i'll break it down real simple like.

the given triangle has an area of 4.5. 72/4.5 = 16. so for a) the triangle is 16 times larger.

for c), b*h /2 = area. since base and height are equal, we can do x * x / 2 = area. we know area is 72. solving for x, x^2 / 2 = 72. x^2 = 144. x = 12. so c) is 12.

for b) the length of the bottom of the small triangle is 3, the length in the big triangle is 12. 12/3 = 4. b) is 4.

The formula is still the same, brainlet. It's w*h / 2. It's two right triangles added together, like user shows...

Here, if you don't understand this I can't help you.

Oops. Made a mistake. x should be sqrt(144) = 12. That is the base of the scaled triangle. So the scaling factor should be 4. Because 3 * 4 = 12.

It makes sense because if you scale a shape by some value v, the area of it get's multiplied by v^2.

Holy shit, some of you guys really are full potato.

Correct answers for you OP, it really is simple math, no tricks.

Don't listen to brainlets.

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Thanks guys, I became retarded right after HS, some good explanations

Answer is 5

Okay, wtf are they even asking. Im pretty good with math but im confused on how to even start this. whats he wanting to know? how many times bigger the triangle is with 770 whatever blocks instead of what it has?

Where are you getting the 1/2 part from? thought that was only with circles

I was super confused as well

Do you have a bigger photo of the "problem"? Pretty sad to see that people here can't even 7th grade math...

Jesus. It's a simple problem with straightforward questions and no tricks.

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Doesn’t matter, retard.
Area calculation for ANY triangle is 0.5(base x height).