The area of a circle is the radius squared multiplied by pi.
This learning activity should help you to understand how to calculate the area of a circle.
They had a serious argument which led to a quarrel and then a fight.
The lawyer submitted a detailed argument to the court claiming that the defendant had an alibi.
His argument was very logical but based on false assumptions.
The army has several tank and infantry regiments and an airborne division.
The foreign army launched an assault on the enemy headquarters.
She loves the world of art and literature.
The art gallery has a fine collection of paintings and statues from all over the world.
She wrote an interesting article for the school magazine.
One aspect of his proposal worried me; the new factory was too close to the residential area.
The Youth Hostel Association is an organization that provides cheap overnight accommodation.
The police became suspicious of his association with known terrorists and they brought him in for questioning.
The association of ideas led to a discussion covering many seemingly unrelated topics.
The Moseley Chapter of the association meets every Friday evening.
His attempt to climb Mount Everest failed because he ran out of oxygen,