Area And Perimeter Of Rectangles And Triangles

1. to find the area of a triangle you need to multiply the base times the height and then divide by two.

True

False

didn't get it right??? go back and watch the video!

Explanation

didn't get it right??? go back and watch the video!

2. The red triangle in the video has a base of 8 inches and a height of 5 inches. What did they say the area of that triangle was?

40 square inches

20 square inches

4 square inches

45 square inches

The area of a triangle is calculated by multiplying the base and height of the triangle and then dividing the result by 2. In this case, the base of the red triangle is 8 inches and the height is 5 inches. Therefore, the area of the triangle would be (8 * 5) / 2 = 40 / 2 = 20 square inches.

Explanation

The area of a triangle is calculated by multiplying the base and height of the triangle and then dividing the result by 2. In this case, the base of the red triangle is 8 inches and the height is 5 inches. Therefore, the area of the triangle would be (8 * 5) / 2 = 40 / 2 = 20 square inches.

3. What is the perimeter of a square with a side length of 7 meters?

7 meters

14 meters

49 square meters

28 meters

The perimeter of a square is the sum of all its sides. In this case, the given square has a side length of 7 meters. Since all sides of a square are equal, the perimeter would be 7 + 7 + 7 + 7 = 28 meters.

Explanation

The perimeter of a square is the sum of all its sides. In this case, the given square has a side length of 7 meters. Since all sides of a square are equal, the perimeter would be 7 + 7 + 7 + 7 = 28 meters.

4. Coach Huddleston needs to put a fence around the football field. The field measures 100 feet by 35 feet. How many feet of fencing does he need to buy?

270 feet

135 feet

400 feet

140 feet

To calculate the amount of fencing needed, we need to find the perimeter of the football field. The formula for perimeter is 2(length + width). In this case, the length is 100 feet and the width is 35 feet. Plugging these values into the formula, we get 2(100 + 35) = 2(135) = 270 feet. Therefore, Coach Huddleston needs to buy 270 feet of fencing.

Explanation

To calculate the amount of fencing needed, we need to find the perimeter of the football field. The formula for perimeter is 2(length + width). In this case, the length is 100 feet and the width is 35 feet. Plugging these values into the formula, we get 2(100 + 35) = 2(135) = 270 feet. Therefore, Coach Huddleston needs to buy 270 feet of fencing.

5. A rectangle has a length of 10 cm and a width of 6 cm. What are the area and perimeter of the rectangle?

Area: 60 cm², Perimeter: 32 cm

Area: 60 cm², Perimeter: 26 cm

Area: 40 cm², Perimeter: 32 cm

Area: 40 cm², Perimeter: 26 cm

The area of a rectangle is found by multiplying the length by the width. So, 10 cm times 6 cm equals 60 cm².

The perimeter of a rectangle is found by adding together the lengths of all four sides. So, 2 times (10 cm plus 6 cm) equals 32 cm.

Therefore, the correct answer is: Area: 60 cm² Perimeter: 32 cm

Explanation

The area of a rectangle is found by multiplying the length by the width. So, 10 cm times 6 cm equals 60 cm².

The perimeter of a rectangle is found by adding together the lengths of all four sides. So, 2 times (10 cm plus 6 cm) equals 32 cm.

Therefore, the correct answer is: Area: 60 cm² Perimeter: 32 cm

6. My name is _________________________.

The given answer "N/A" implies that there is no name provided. It could be that the person does not want to disclose their name or the question is incomplete and does not provide an option for the person to fill in their name. Without further information, it is not possible to determine the exact reason for the answer.

Explanation

The given answer "N/A" implies that there is no name provided. It could be that the person does not want to disclose their name or the question is incomplete and does not provide an option for the person to fill in their name. Without further information, it is not possible to determine the exact reason for the answer.

Submit