In this video we'll learn how to find the perimeter of a rectangle. Remember that 'perimeter' is just the distance around the outside of the rectangle. Since a rectangle is a quadrilateral with four interior right-angles, that means that opposite sides of the rectangle have the same length, so we can multiply the width by 2, and multiply the length by 2, and then add those products together to get the rectangle's perimeter.

In this video we'll learn how to find the area of a figure that's the compilation of multiple rectangles, by finding the area of the larger rectangle and subtracting out part of the area, or by finding the areas of the smaller rectangles and then adding them together.

In this video we'll learn how to find the area of a rectangle. Since a rectangle is a quadrilateral with four interior right-angles, we'll just multiply the length of the rectangle by the width of the rectangle in order to find its area.

The first episode of this six-part series, America's Surveillance State, touches briefly on themes each subsequent episode will focus on. Topics include the mechanics of the NSA surveillance program, how and why the Bush-Cheney administration loosened legal restrictions on domestic surveillance, and the industrial-surveillance complex. Also covered are the mainstream media's relationship with the NSA, and how the government is cracking down on investigative journalists who report leaks. Rather than undergo serious reform after whistleblower actions and public outrage, the NSA and other agencies seem to have a growing obsession with ferreting out potential internal threats to their way of doing things.

Bhutto tells the epic story of one of the most fascinating characters of our time — Benazir Bhutto, the first woman in history to lead a Muslim nation. A favored daughter of the family often called the “Kennedys of Pakistan,” Benazir was elected Prime Minister after her father was overthrown and executed by his own military. Her two terms in power saw extreme acts of courage and controversy as she tried to clean up Pakistan’s corrupt political culture while quelling the fires of radical Islam that threaten to engulf the region. A fascinating array of archival footage and interviews with family members and leading experts brings life to this tale of Shakespearean dimension in the country the Economist calls the world's most dangerous place.

This program takes an inside look at China’s booming economy and its growing impact on the environment. What will happen as China follows America’s affluent lifestyle and begins to rival the U.S. as the world’s biggest polluter? Part of the series World in the Balance: The Population Paradox. Distributed by PBS Distribution.

Recent studies revealed that over the last 50 years, approximately four percent of Catholic priests were responsible for molesting some 10,000 victims—the majority of whom were young people. After reporting on these studies’ findings, this ABC News program scrutinizes a diocese in California to examine what exactly has happened there. Although sexual misconduct involving priests has been public knowledge for some time now, this research data exposes for the first time the appalling scope of it.

Is the hijab—the veil associated with Muslim women—a symbol of oppression, an emblem of cultural identity, a combination of these two elements, or something else altogether? Set against a backdrop of Madison Avenue ads and Hollywood movies that alternately romanticize and demonize the Middle Eastern woman, this program presents the history of Arab womanhood, from the days of the early colonial missions to the post-Gulf War era. Informed and articulate Arab women living in North America passionately elucidate the ideologies behind the veil, as they tear away the labels imposed by both East and West.