Video Gallery

Thursday’s Math Work

Go to Video Gallery Added May 28, 2020 •

Copy this URL:
Embed code:	<iframe class="edlio-embed-player" type="text/html" width="640" height="360" src="//vistagrande.pvpusd.net/apps/embed/?v=270798" frameborder="0" allowfullscreen></iframe> Change dimensions

Go HD

I’ll use this video to help you complete today’s math assignment.

Show Transcript

say good morning this is Thursday is math video so today for math you have just one page 146 in the math workbook and be sure to say that you also watch the review video and then take your weekly assessment which is also going to be at the top it says the area of a rectangular Recreation Area is 45 square miles to the area of the rectangle is 45 square miles is 5 miles as five find the length as yesterday Area is given to us 45 square miles is the lake so think about the formula to get the area rectangle area is equal to length times width what we know is he area before you buy here 45 is equal to the length so we know that 45 to equal the length x 5 so we're thinking what number * 5 what length * 545 for the area or another way to think of it is what is 45 / 5 and the answer is 9 so we know the length is equal to 9 miles over here next question says find the perimeter to get the area of a rectangle we do the length times the width but to get the perimeter the distance around the outside add up all four sides so we have this one labeled with five we know opposite sides are equal to this one is also five if this app here is 9 than the bottom side is also add up all four sides 9 + 5 + 1414 + 9 is 23 + 23 + 5 is 20 is 28 find the perimeter of a rectangular poster is 100 we are given the perimeter 156 in is 36in so before we were given the area what we know about area that length times width is Azaria this time we're given the perimeter and were given the wit and were asked to find the length so we need to think about how does someone get perimeter perimeter you add up all four sides now you know I like to write those Asians out for myself so we don't know the lights going to put a blank for the two lengths we were adding up the perimeter we would do length plus length + width + width so length length is blank right now but we do know the way so we would add the 36 from the side and we would add the 36 from this and after adding it all together we know we got a total perimeter of 156 I'm going to go ahead and write 156 as what we know we know the whip that's life and we know the total is 156 so we need to figure out these unknown numbers we know that the same because they represent two sides that are equal probably the first step is to add these two numbers together to see what they eat 72 perimeter of 156 still trying to get these two numbers what is focusing on D2 numbers I'm going to get rid of the witch in my problem from the perimeter perimeter without take away 36 + 36 what's the length 484 I know that those two sides are equal if I didn't know that these two were the same number it would be impossible numbers toxicity the same number and the reason they have to be the same number is because they represent two equal side to side if I want to get out what two numbers that are the same divide 84 by 284 divided by 2 4 * play and we now know that half of 84 is 42 so that means each length must be 40 to 42 42 you know this is 36 because of the sides are equal so what I think the answer is is 42 inches what I can do to be sure is actually the perimeter again + 42 + 36 + 3656 + 42 + 42 + 36 + 36 s all four sides of the rectangle should add up to the given perimeter of 156 Paseo Verde 4 + 6 is 1010 + 6 + 16 + 4 + 5 9 + 3 + 12 + 3 Beyonce works that means we have the correct length 42 inches so now we know that you were given the width of 36 the last find the area for area of a rectangle is always use area equals length times width is 42 42 x 36 46 * 36 what's 6 * number 6 * 2 is 12 4 * 6 is 24 + 1 + 25 0 in the ones place get rid of what you carry now you're moving to the three times this number 3 * 2 is 6 3 * 4 is 12 and then size 1 so we get a total area of 1512 and I need some kind of square unit Square all right and that's it for today

Uploaded by Abigail Maeder.

Video Gallery

Thursday’s Math Work

Popular Videos