7th REVIEW Unit 4 Area of Quads and Circles

Front

What is the formula for the area of a trapezoid?

Back

The area (A) of a trapezoid can be calculated using the formula: A = \frac{(b_1 + b_2) \cdot h}{2}, where b_1 and b_2 are the lengths of the two bases and h is the height.

Front

How do you calculate the area of a composite figure?

Back

To calculate the area of a composite figure, decompose it into simpler shapes (like triangles and quadrilaterals), calculate the area of each shape, and then sum those areas.

Front

What is the formula for the area of a rectangle?

Back

The area (A) of a rectangle is calculated using the formula: A = length \cdot width.

Front

What is the formula for the area of a circle?

Back

The area (A) of a circle is calculated using the formula: A = \pi r^2, where r is the radius of the circle.

Front

What is the formula for the circumference of a circle?

Back

The circumference (C) of a circle is calculated using the formula: C = 2\pi r, where r is the radius.

Front

How do you find the diameter of a circle if you know the circumference?

Back

To find the diameter (d) of a circle from the circumference (C), use the formula: d = \frac{C}{\pi}.

Front

What is the relationship between diameter and radius?

Back

The diameter (d) of a circle is twice the radius (r): d = 2r.

Front

What is the area of a triangle?

Back

The area (A) of a triangle is calculated using the formula: A = \frac{1}{2} \cdot base \cdot height.

Front

What is a quadrilateral?

Back

A quadrilateral is a polygon with four sides and four angles.

Front

What are the types of quadrilaterals?

Back

Types of quadrilaterals include squares, rectangles, rhombuses, trapezoids, and parallelograms.