Area | Maths Concept For Kids | Maths Grade 5 | Periwinkle - By Lumos Learning
Transcript
| 00:03 | Yeah . Good morning , students . Today we shall | |
| 00:11 | revise how to find the area of square and rectangle | |
| 00:19 | . Let's begin . What does the term Asia mean | |
| 00:26 | ? Asia measures the surface of a simple closed region | |
| 00:33 | . The units of area are the square of the | |
| 00:37 | units of length . Thus area can be expressed in | |
| 00:43 | square units such as square centimeters , square meters or | |
| 00:51 | square kilometers . There are two methods to find the | |
| 00:57 | area . One is by dividing a region into unit | |
| 01:04 | squares and thereafter counting the unit squares and the other | |
| 01:11 | is by using formula . Let's learn about each of | |
| 01:18 | these in a big detail . First , let's see | |
| 01:24 | how to find the area of a simple closed region | |
| 01:30 | by counting unit squares . When the region is divided | |
| 01:36 | into unit squares , look at the square A B | |
| 01:42 | C D . It is divided into 25 equal squares | |
| 01:50 | or side one centimetre each . Thus we see that | |
| 01:58 | the area of square A B C . D is | |
| 02:03 | equal to 25 square centimetres . Square . Centimeters can | |
| 02:12 | also be written as S U . C M . | |
| 02:15 | In short . Now let's find the area of the | |
| 02:22 | given figure . Look at the figure here . Eat | |
| 02:29 | square equals one square centimeter and eat half square equals | |
| 02:36 | two art square centimeter . Thus , on counting , | |
| 02:43 | we get that . The given figure has 14 squares | |
| 02:48 | and two up squares . Therefore , the area of | |
| 02:55 | this given figure is equal to 14 plus half plus | |
| 03:00 | half , which is 15 square centimeters . When finding | |
| 03:10 | the area of a plane figure by counting the unit | |
| 03:14 | squares , remember one we ignore or do not count | |
| 03:21 | the squares that are less than half two . If | |
| 03:28 | a square is more than half , we count the | |
| 03:31 | area as one square unit . Now let's see how | |
| 03:39 | to find the area using formulas . The area of | |
| 03:45 | a rectangle can be found by using the formula . | |
| 03:51 | A is equal to L A into B , where | |
| 03:58 | a is the area . L is the length and | |
| 04:02 | B is the breadth of the rectangle . Let's use | |
| 04:07 | this formula to find the area of a rectangle . | |
| 04:12 | P U R s having length seven units and bread | |
| 04:17 | five units . Rectangle P . Q . R s | |
| 04:24 | has length of seven units and breadth of five units | |
| 04:31 | . Therefore , by using formula , area is equal | |
| 04:35 | to length into bread . We get the area as | |
| 04:40 | 35 square units . Now let's solve one more example | |
| 04:48 | , to understand it in a better way , find | |
| 04:52 | the area of a rectangle having length 33 m and | |
| 04:59 | red 10 m area is equal to lend into breadth | |
| 05:08 | which is equal to 33 into 10 , which is | |
| 05:14 | equal to 330 square meters . The formula to find | |
| 05:24 | the area of a square is different . It is | |
| 05:29 | e is equal to s into s there s is | |
| 05:36 | equal to the length of the side of the square | |
| 05:43 | . Let's find the area of the square w x | |
| 05:47 | by Z having side 13 units using this formula as | |
| 05:56 | the length of the side of the square , W | |
| 06:00 | X Y Z is of 13 units using the formula | |
| 06:07 | area is equal to site into sight . We get | |
| 06:13 | to the answer as 169 square units . Now let's | |
| 06:23 | solve one more example . To understand it in a | |
| 06:26 | better way , find the area of a square having | |
| 06:32 | side of blend . Nine centimeters area is equal to | |
| 06:41 | side into side , which is equal to nine into | |
| 06:47 | nine , which is equal to 81 square centimeters . | |
| 06:56 | Remember the formulas . One area of a rectangle is | |
| 07:02 | equal to length into red two area of a square | |
| 07:11 | is equal to side into side kids . If you | |
| 07:18 | remember the formulas , then finding the area will not | |
| 07:22 | be difficult , Yeah . |
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Area | Maths Concept For Kids | Maths Grade 5 | Periwinkle
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