4.6-4.10 Finding the Area of the Circle

Drag and Drop

The Equation for the Trapezoid is ​

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The Equation for the Area for the Rhomboids is ​

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The Equation for the Parallelogram is ​

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The area for the Triangle is ​

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Drag these tiles and drop them in the correct blank above

A = 1/2 H (B1+B2)

A = 1/2 D1 x D2

A = Base x Height

A = 1/2 Base x Height

A = 1/2 Base (Height + Base 2)

A = 1/2 x (Height + Base 1 + Base 2)

Labelling

Label the following parts of a Trapezoid

Drag labels to their correct position on the image

Height = 5 in.

Base 2 = 5 in.

Base 1 = 3 in.

Do not Consider

Multiple Choice

What Equation do we use to answer this?

• A = 1/2 Height (Base₁ + Base₂)

• A = 1/2 D₁ x D₂

• A = Base x Height

Math Response

Using the Equation, $$Area\ =\ \frac{1}{2}Height\ \left(Base_1+Base_2\right)$$ ,

Find the Area of the Trapezoid

Type answer here

Correct Answer: 20

Deg^°

Rad

Review
from the past 2 classes.

Lesson 4.5 ~4.7

Labelling

Place the correct labels on the line.

Drag labels to their correct position on the image

Radius

Circumference

Diameter

Dropdown

Radius is ​

Select answer

Diameter is ​

Select answer

When you divide the circumference of the circle to the diameter, the number is a ​

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and will always be a

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[NUMBER] or ​​ ​

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[SYMBOL].

Drag and Drop

The space in which the goat can roam is the ​

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​​ of the circle. The distance of the rope from the stake ​

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of the circle. To find the total space in which the goat can roam, use the formula, ​

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Drag these tiles and drop them in the correct blank above

area

radius

Area = pi x radius^2

Circumference = 2 x pi x radius

diameter

circle

Multiple Choice

For the value of pi ( $$\pi$$ ), use the value 3.14.

Find the area of the circle with a radius of 5 using the equation shown on the left.

• 25.5

• 57.5

• 78.5

• 88.5

This is to be done with accuracy. Work must be shown to ensure full credit.

Pass out Skill's Practice for 4.9

Pass out Skill's Practice for 4.9

Dropdown

To answer the question, you must first identify the equation for the area of the circle,

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And then, you must plug in the numbers to find the answer being, ​

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Multiple Choice

Calculate the area.

Hint 1: You must calculate radius first from the diameter.

Hint 2: You must use $$Area\ =\ \pi\ x\ radius^2$$

• 30.852 cm²

• 36.727 cm² 

• 146.906 cm²

• 156.954 cm²

Finish the rest of the skill's practice for the remainder of the period.