Finding the Perimeter

[braedenthe]

He made this way more complicated than necessary

[ktz]

If you change the figure in your head, you can see that by just moving the unknown sides (long one up and short one to the right) you get a perfect rectangle with sides 20 and 10. To get the perimeter, you just sum up 20+10+20+10 = 60. Pretty creative way without hard math, Logic on top! ⭐

[argentknight]

math is fun when we know how to solve it

[simonflohimont]

Our teacher made it easier 18 years ago
The perimeter of an Lshape is always equal to the perimeter of the longest sides multiplied by 2. Or simply the perimeter of the rectangle encompassing it

[markanthonysalandanan]

Bro tysm we were just learning how to find the area of a composite shape but I couldn’t find the missing measurements this helped me a lot

[georgerickman]

This is a common standardized testing problem. Trying to find missing lengths is a way to have students take additional time. Analytical thinkers will realize it’s simply 2 times (width plus length) for the perimeter still. Then you are on to the next problems with more time left!

[raminhameedi]

When you see this kind of shape and the perimeter was required use this formula: 2(largest length + largest width) which for this problem it’s 2(10+20) = 60

[prateekptg]

This type of question is fun for 3rd grade students during exam in India 😂

[OqbamichaelFetwi]

A perimeter is the total distance of all the sides of a figure. Hence we can also simply add all the sides. It is as simple as that. Eg. Add all the sides starting from the above 4 and move anticlockwise. 4+10+20+4+ 16+6 which 60.

[mxg]

This is assuming all angles are 90 degrees.

[zaphodbeeblebrox]

If you can’t see it’s the same as for a rectangle, do this:
20+(20-4)+4+10+(10-4)+4=
20+20+10+10
No need to make it more complicated.

[JaiBhatia-bp]

*And then you add a pulley to it with a coefficient of friction = 0.8 and put a string on it of mass pi kg, attaching that string to a toy car of mass 0.9 kg and make that car rotate around this L shape on a road banked at an angle 37 degree.
If the car has a centrifugal acceleration of 9 m/s^2, find the amount of time taken for the string to break.*
Solve that and you can get 4 marks in your routine tests at India

[zackarybumbaugh]

I learn more from you then i ever did my teacher's in school idk what it is but it just super easy to follow

[sivuceke]

I love you bro I didn't understand it but you made it so easy ❤❤😅😅😊😊

[nestriel]

The explanation is so clear it makes more easy

[viettrinh]

Thank you very much, you make that it is so easy

[imknownbymanynames]

Other way: if u don't know an answer, always tick 'c' 🗣🔥🔥🔥

[BoredCuber]

What app do you use and how do you get the questions on it

[minato-namikaze]

Bro teachers take a whole period for teaching this but you did in like 30 seconds

👍

[manuelinthehouse]

This is easy math- that’s why it’s fun 😅