math topic 10

Question 1

what is the formula for circumference

Answer 1

c=πd
or
c=2πr

Question 2

how to find diameter using circumference

Answer 2

divide circumfrence by π

Question 3

what is the formula for area of a circle

Answer 3

a=πr²

Question 4

how to find radius using area of a circle

Answer 4

divide the given area by π, then find the square root of the number you get

Question 5

how to find diameter using area of a circle

Answer 5

do the steps for finding radius. after you’ve found the radius, multiply it by 2

Question 6

how to use circumference to find area of a circle

Answer 6

divide the circumfrence by 2π
then use the area formula on that number

Question 7

how to find surface area

Answer 7

find the area of all the shapes in the figure. then add the areas together

Question 8

what is the formula for finding surface area of rectangular prisms

Answer 8

2lw + 2lh + 2wh

Question 9

what is the formula for volume

Answer 9

v=Bh
B is area of base
h is overall height of the figure

Question 10

what is a hexagon split into

Answer 10

six triangles

Question 11

what is the formula for volume of cubes

Answer 11

V=s³

Question 12

how to find the missing height of a figure

Answer 12

find the area of the base. then, divide the volume by the area of the base

Question 13

vertical angles are what

Answer 13

equal

Question 14

adjacent angles what

Answer 14

share a ray

Question 15

what are complimentary angles

Answer 15

angles that add up to 90 degrees

Question 16

what are supplementary angles

Answer 16

angles that add up to 180 degrees

Question 17

adjacent angles must what

Answer 17

share two of the same letters in their names