Area and Perimeter Concepts

In this video, Susi guides viewers through solving a geometry exercise involving a composite figure. The exercise requires calculating the area of a semicircle, rectangle, and trapeze, and then summing these areas to find the total area of the figure. Susi explains the process step-by-step, including how to handle composite figures by breaking them into simpler shapes. The video concludes with a call to action for viewers to like, share, and subscribe for more content.

What should you do if you need more time to copy the exercise from the video?

• Rewind the video

• Fast forward the video

• Skip the video

• Pause the video

Tags

CCSS.3.MD.C.7D

What is the first step in solving the area of a composite figure?

• Divide it into simpler shapes

• Calculate the perimeter

• Ignore the smaller shapes

• Estimate the area

Tags

CCSS.7.G.B.4

How do you find the area of a semicircle?

• Multiply the diameter by pi

• Square the radius and multiply by pi, then divide by two

• Multiply the radius by pi

• Square the diameter and multiply by pi

Tags

CCSS.7.G.B.4

What is the radius of the semicircle if the diameter is 10?

• 15

• 10

• 5

• 2.5

Tags

CCSS.7.G.B.4

What is the area of the semicircle if the radius is 5?

• 78.5 square meters

• 39.25 square meters

• 50 square meters

• 25 square meters

Tags

CCSS.4.MD.A.3

CCSS.3.MD.C.7B

What is the formula for the area of a rectangle?

• Base times height

• Base minus height

• Base divided by height

• Base plus height

Tags

CCSS.4.MD.A.3

CCSS.3.MD.C.7B

If the base of the rectangle is 10 and the height is 5, what is its area?

• 15 square meters

• 25 square meters

• 50 square meters

• 75 square meters

Tags

CCSS.6.G.A.1

What is the formula for the area of a trapeze?

• Sum of bases divided by two, then multiplied by height

• Base times height

• Base plus height divided by two

• Base minus height

What is the total area of the composite figure in the exercise?

• 200 square meters

• 150 square meters

• 121.75 square meters

• 100 square meters

What is the height of the trapeze if the bases are 10 and 3, and the total length is 20?

• 3

• 15

• 5

• 10