How do you find the perimeter of a rectangle?

The perimeter of a rectangle is calculated using the formula: $$P = 2(l + w)$$ .

What is the formula for the area of a triangle?

The area of a triangle is given by the formula: $$A = \frac{1}{2}bh$$ , where $$b$$ is the base and $$h$$ is the height.

How do you calculate the perimeter of a triangle?

The perimeter of a triangle is the sum of the lengths of its sides: $$P = a + b + c$$ .

What is the formula for the area of a trapezoid?

The area of a trapezoid is given by the formula: $$A = \frac{1}{2}(b_1 + b_2)h$$ , where $$b_1$$ and $$b_2$$ are the lengths of the two bases and $$h$$ is the height.

If a circular track has a radius of 140 feet, what is the circumference?

The circumference is 880 feet, calculated using the formula: $$C = 2C0r$$ .

What is a minor arc in a circle?

A minor arc is the shorter arc connecting two points on the circumference of a circle.

How do you find the area of a shaded region in a circle?

To find the area of a shaded region, subtract the area of the unshaded part from the total area of the circle.

If a sector has an area of 9π yd², what is the angle of the sector if the radius is 3 yd?

The angle of the sector is 90 degrees, calculated using the area formula for a sector.

Area & Perimeter Review Flashcards

Student preview

15 questions

Show all answers

1.

FLASHCARD QUESTION

Front

What is the formula for the area of a circle?

Back

2.

FLASHCARD QUESTION

Front

How do you calculate the circumference of a circle?

Back

3.

FLASHCARD QUESTION

Front

What is a sector of a circle?

Back

A sector is a portion of a circle enclosed by two radii and the arc between them.

4.

FLASHCARD QUESTION

Front

How do you find the area of a sector?

Back

5.

FLASHCARD QUESTION

Front

What is the relationship between the radius and the area of a circle?

Back

The area of a circle increases with the square of the radius; doubling the radius increases the area by a factor of four.

6.

FLASHCARD QUESTION

Front

If a circle has an area of 64π in², what is its radius?

Back

7.

FLASHCARD QUESTION

Front

What is the formula for the area of a rectangle?

Back

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