Math

Question 1

Angles at 90 degrees

Answer 1

Complementary angles

Question 2

Angles at 180 degrees

Answer 2

Supplementary angles

Question 3

What are congruent shapes?

Answer 3

They’re shapes that are the exact same in size and shape

Question 4

What are similar shapes?

Answer 4

They’re shapes that are the exact same in shape.

Question 5

What is the formula for a parallelogram/ cubes area?

Answer 5

Base x Height

Question 6

What is the formula for a trapeziums area?

Answer 6

1/2 (a+b)(h)

a and b = bases of the trapezium (parallel sides)

Question 7

What is pi?

Answer 7

3.142

technically 3.141…. but round up.

Question 8

What is a cross-section?

Answer 8

a surface exposed by making a straight cut through it.

Question 9

What is the formula for area of cross-section for a rectangle?

Answer 9

base x height

Question 10

How do you calculate the volume of a prism?

Answer 10

area of cross-section x length

write cm(cubed) for answer

Question 11

What is the formula for area of cross-section for a triangle?

Answer 11

1/2 x base x height

Question 12

How do you calculate the area of cross-section of a circle?

Answer 12

pi r²

Question 13

How do you calculate surface area of a curved surface?

Answer 13

2(pi)r² x h

Question 14

How do you calculate the volume of a sphere?

Answer 14

4/3πr(cubed)

Question 15

What is a prism?

Answer 15

It’s any 3d object that has a constant cross sectional area.

e.g cylinder’s, cuboids, triangular prisms

Question 16

What is the formula for area of a circle?

Answer 16

πr(cubed)

Question 17

What is the pythagoras theorem?

Answer 17

A² + b² = c²

Question 18

How do you calculate tangent?

Answer 18

opposite/ adjacent

Question 19

How do you know which side is the “opposite”

Answer 19

Check which side the tangent is facing

Question 20

Formula of volume of hemisphere.

Answer 20

(2/3) pi r(cubed)

Question 21

Surface area of a sphere

Answer 21

4pi r²

Question 22

Volume of a pyramid

Answer 22

(1/3) x area of base x height