CC3 TEAM Chapter 4 Assessment

Front

What is the formula for the perimeter of a semicircle?

Back

The perimeter (circumference) of a semicircle is given by the formula: P = πr + d, where r is the radius and d is the diameter.

Front

If the diameter of a semicircle is 5m, what is the radius?

Back

The radius is half of the diameter. Therefore, the radius is 2.5m.

Front

Calculate the perimeter of a semicircle with a diameter of 5m. (Use π ≈ 3.14)

Back

P = πr + d = 3.14 * 2.5 + 5 = 12.85 meters.

Front

What is the formula for the area of a circle?

Back

The area of a circle is given by the formula: A = πr².

Front

How do you find the area of a semicircle?

Back

The area of a semicircle is half the area of a full circle: A = (1/2)πr².

Front

If the radius of a semicircle is 2.5m, what is its area? (Use π ≈ 3.14)

Back

A = (1/2)π(2.5)² = (1/2)(3.14)(6.25) = 9.81 m².

Front

What does it mean to simplify an expression?

Back

Simplifying an expression means to reduce it to its simplest form by combining like terms and performing operations.

Front

Simplify the expression: 6 − (3x − 4) + 7x − 11

Back

The simplified expression is 4x - 1.

Front

What is the solution for x in the equation: 2x + 8 = 0?

Back

To find x, subtract 8 from both sides: 2x = -8, then divide by 2: x = -4.

Front

What is the slope-intercept form of a linear equation?

Back

The slope-intercept form is given by: y = mx + b, where m is the slope and b is the y-intercept.