Perimeter and Area Flashcards
1
Q
What is the formula for an area of a triangle?
A
0.5 x base x vertical height
2
Q
What is the formula for an area of a parallelogram?
A
base x vertical height
3
Q
What is the formula for an area of a trapezium?
A
0.5 (a+b) x vertical height
4
Q
What is the formula for an area of a circle?
A
pie x (radius)^2
5
Q
What is the formula for the circumference of a circle?
A
pie x diameter = 2 x pie x radius
6
Q
What is the formula for an area of a sector on a circle?
A
y/360 x area of full circle
7
Q
What is the formula for a length of an arc on a circle?
A
y/360 x circumference of full circle
