areas/perimeters/volume of shapes

Question 1

area of a parallelogram

Answer 1

base x height

Question 2

area of a trapezium

Answer 2

1/2H(b + top)

Question 3

circumference of a circle

Answer 3

2 x pi x r

Question 4

area of circle

Answer 4

pie x r2

Question 5

area of a sector

Answer 5

circumference of circle x angle/360

Question 6

surface area of a cube

Answer 6

L x h x no. faces

Question 7

surface area of a 3d shape

Answer 7

surface area of each face added together. remember for a cuboid the faces opposite each other will have he same surface area.

Question 8

surface area of cylinders

Answer 8

surface area of the circles x length

Question 9

what is volume written as?

Answer 9

cm3

Question 10

volume of cylinders/prisms/two identical shapes connected by some rectangles

Answer 10

area of cross section x length

cross section=shape at the end of the prism

Question 11

volume of a cone

Answer 11

(Pi x r2 x h) divided by 3

remember=a2 + b2 = hypotenuse

Question 12

volume of pyramids

Answer 12

(base area x height) divided by 3

Question 13

Volume of a prism

Answer 13

area of cross section x length

Question 14

Circumference of a circle

Answer 14

2 Pie R

Question 15

Area of a circle

Answer 15

pie R squared