In order to calculate the centroid of this shape, you need to know the area of each part and the position of its centroid.

He always has a high sense of alertness.

He has a strong ambition and is always seeking self-improvement.

He proclaimed peace loudly.

He used a stone as a projectile.

Her necklace had a beautiful pearl on it.

The piece of jade used in ancient China, known as 'bi', is considered to be very valuable.

He kicked a ball in the park.

He believed that a spirit or demon lived in that forest.

According to her, she is confident that the project will succeed.