Lesson 21 Flashcard-7th Grade

Front

What is the formula to find the area of a circle?

Back

Front

How do you calculate the area of a square?

Back

Front

If a circle has a radius of 1 ft, what is its area?

Back

Front

What is the total area of four identical circles with a radius of 1 ft?

Back

Front

How do you find the leftover area after cutting shapes from a larger shape?

Back

Subtract the total area of the cut shapes from the area of the larger shape.

Front

What is the area of a square with a side length of 4 ft?

Back

Front

What is the combined area of two semicircles with a radius of 15.25 m?

Back

Front

How do you convert the area of a circle to square meters if the radius is given in feet?

Back

Front

What is the area of a circle with a radius of 15.25 m?

Back

Front

What is the significance of π in geometry?

Back

π (pi) is a constant approximately equal to 3.14, used to calculate the circumference and area of circles.