Why Did the Chicken Hit Her Egg With an Ax? Do each exercise...

Why Did the Chicken Hit Her Egg With an Ax? Do each exercise and find your answer below. Circle the number-letter next to it. Write the letter in the matching numbered box at the bottom of the page. A. Find both the perimeter and the area of each figure. 1 8 cm 11 cm 2 16 ft 19 ft 24 ft 3 15 in. 12 in. 9 in. 4 21 m 20 m 19 m 23 m 5 4.5 cm 3.2 cm 2.9 cm 2.4 cm 6 56 ft 90 ft 100 ft B. Find the area of the shaded region in each figure. 7 27 in. 12 in. 12 in. 27 in. 8 10 cm 9 cm 7 cm 9 30 ft 25 ft 50 ft 53 ft 10 10 m 8 m 6 m 7 m 11 18 in. 9 in. 18 in. 12 11 cm 17 cm 33 in. 9-R 328 ft 21-A 10.1 cm 1-S 67 m 1-T 86 ft 3-E 64 m 16-A 38 cm 8-T 36 in. 13-O 11.4 cm 12-L 312 ft 10-D 267 in.2 14-P 115 cm2 12-T 1915 ft2 7-S 3.48 cm2 17-T 106 cm2 18-O 88 cm2 19-H 534 in.2 5-R 80 m2 18-C 62 in.2 17-K 585 in.2 21-I 243 in.2 7-N 97.5 cm2 20-S 384 ft2 6-A 2075 ft2 5-W 93.5 cm2 15-U

Transcript

00:01 How you find the perimeter and the area of each figure.

00:05 So for number one, you found the area already of 88 centimeters squared, but to find the perimeter, you have to add up all the sides.

00:14 So if this side is eight centimeters, then this side's gonna be eight centimeters.

00:19 If this side's 11 centimeters, then this side's gonna be 11 centimeters.

00:23 So you add up 11 plus 8 plus 11 plus 8, and you would get 38, 38 centimeters.

00:32 For number two, to find the area of this shape, you would have to multiply your base times your height.

00:42 So you do 16 times 24, which is 384 feet squared.

00:49 Okay.

00:50 And to find the perimeter, you would add up 24 times 2 because it's two sides.

00:56 And then 19 times 2.

00:58 You would add those numbers together and you would get the perimeter of 86 feet okay for number three for number three to find the area of this triangle you would do nine times 12 divided by two because you do the base times the height divided by two and you would get 54 feet squared okay and then to find the perimeter, you would add 9 plus 15 plus 12.

01:36 And you would get 36 feet.

01:40 Actually, not feet, inches.

01:42 Inches for both of them.

01:44 Inches squared for this one and then inches.

01:47 All right.

01:48 Number four, for the area for this one, you're going to take your base of 21 and your height times 19 and divide it by two.

01:59 So your area, you would do 21 times 19, divide that by two, and you would get 399 feet, i'm sorry, meters.

02:11 I don't know why i keep on seeing feet squared.

02:14 For your perimeter for this, you would add up 21 plus 23, plus 20, and you would get 64 feet.

02:25 Okay? or, i'm sorry, meters.

02:27 For this next one, to find the area, you would take 2 .4, your base and multiply that by your height, 2 .9, divide it by 2, and you would get 6 .96 centimeters squared.

02:46 To get your perimeter, you would add 2 .4 plus 3 .2 plus 4 .5, and your perimeter would be 10 .5 .5.

02:56 And your perimeter would be 10 .4 .5.

02:57 1 .1 centimeters okay for number six to find the area you would get 90 times 56 because you do the height times the base and you would get 5 ,040 feet squared to get the perimeter you would add 100 times 2 plus 56 times 2 and your answer would be 312 feet.

03:34 Okay.

03:36 For the next ones, it wants you to find the area of the shaded region in each figure.

03:42 Okay.

03:43 So what i would have to do to find the area of this shape, i would take the area of your bigger shape.

03:49 So it's a square, so 27 squared.

03:53 Okay, because the area of a square is side squared.

03:56 And then i would subtract the area of this square, which is 12 squared.

04:02 Okay? so when i do that, i would get 729 minus 144, and i would get 585 inches squared.

04:16 For number eight, what you would have to do to find the area is you would take your area of the bigger shape.

04:26 So the base is 9 plus 7, which is 16...

Question

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