Three-Dimensional Figures and Cross Sections

Question 1

A square is inscribed in a circle of diameter 12 millimeters. What is the area of the shaded region?

Revolt · Accepted Answer

(72π – 144) mm2

Question 2

A scientist has four petri dishes of different sizes. Each dish contains a different number of bacteria.

Revolt · Accepted Answer

Dish C and Dish D have approximately the same population density.

Question 3

Four circles, each with a radius of 2 inches, are removed from a square.

Revolt · Accepted Answer

(64 – 16π) in.2

Question 4

On a coordinate plane, parallelogram R S T U is shown. Point R is at (1, 1), point S is at (7, 0), point T is at (10, 4), and point U is at (4, 5).

Revolt · Accepted Answer

5.4 units

Question 5

On a coordinate plane, triangle A B C has points (1, 1), (4, 0), (3, 5).

Revolt · Accepted Answer

7 square units

Three-Dimensional Figures and Cross Sections Answers