1.1.9 Area Flashcards
1
Q
Area of a triangle?
A
Base x Height /2
2
Q
Area of a trapezium?
A
1/2(a+b) x h
3
Q
Area of a circle?
A
π x r²
4
Q
Circumference of a circle?
A
π x D
5
Q
Area of a sector?
A
π x r² x angle/360
6
Q
Length of arc?
A
π x D x angle/360
7
Q
What is 1 radian= to?
A
57.5 degrees.