math things you just need to remember

To convert imperial gallons to litres, multiply by

4.54

Area of a right circular cone of base radius r, and height l, is.

(π) x (r) x (l)

The formula for calculating the area of a right angled triangle is.

½ (base * height).

What is a scalene triange?.

All 3 sides unequal.

To find the area of a circle, multiply.

Area = π x radius²

profit as a %

profit % = selling price - cost price / cost price. x 100

loss as a %

loss % = cost price - selling price / 100 cost price

profit =

sale price - cost price

loss =

cost price - sale price

How many centimetres is in an inch?.

1 inch = 2.54 cm

The formula for calculating the torque loading on a nut or bolt is.

Torque = force x distance.

How is the area of a circle calculated?

Area = πr²

Convert knots to MPH

1 knots = 1.15 mph

To convert inches to millimetres, it is necessary to

multiply by 25.4.

To convert pounds of fuel into kilograms

multiply by 0.4536

2.2 lb = 1 kg. 1lb = 0.4536 kg.

find the cercumfrence of a ciercle

2 x pie x R

how to find the area of a triangle

half x base x height

Weight is equal to

Weight = mass * gravity.

To convert gallons to litres.

1 gallon = 4.55 litres.

volume of a cylinder

pie x r x D(length or height) dont over think it

What is the formula for calculating the curved area of a cone?.

π radius height.

one radian is equal to how many degrees

57.29 degrees

(a+b)(a-b) equals

a² - b²

(a+b)² =

a²+2ab+b²

(a-b)²

a²-2ab+b²

a³+b³=

The comparison of the power input to the power output of an inverter is expressed as a

any comparison is a ratio

what do supplementary angles add up to

180

what does complementary angles add up to

90

what do you do when it says factorise

answer all three and see what one is right

Can you take the cube root of a negative number?.

Correct Answer is. Yes.
Explanation. You can take the cube root and it will remain negative but not the square root

One of the square roots of a positive number is positive. What is the other one?.

The other square root is negative.

Every positive number has two square roots: one positive (the principal square root) and one negative. This is because multiplying two negative numbers always results in a positive number.

A dial gauge is calibrated to an accuracy of 0.001 inch, when using the dial gauge, you should.

round off the answer to calibrated value

Millibar is the unit of

pressure