Right Angled Triangles and Pythagoras Flashcards
What is the formula to find the hypotenuse?
c squared = a squared + b squared.
Then square root answer to find c on its own.
What is the formula to find an unknown side using the theorem?
The formula is unknown side squared = c squared - b squared
Square root to find answer.
How do you calculate pythagoras in a 3D shape?
To do this you need to find a right angled triangle at the base and a right - angled triangle for your target length. The base triangle is to calculate a length for the first triangle, which can be represented as x.
How do you determine whether to use the formula for the hypotenuse or an unknown side?
You determine this by checking for the unknown sides and if the side is longer than the other two lines it is the hypotenuse (use regular formula), and if it isn’t, it is the unknown side (use minus formula)
What is the hypotenuse?
The hypotenuse is the longest length of a right angled triangle.
What is a right - angled triangle?
A right angled triangle is a triangle that has one of the angles as 90 degrees.
Can you use pythagoras for non right angled triangles?
No, you cannot. You must split them to make right angled triangles.
How would you make an isosceles triangle into a right angled triangle?
Split it straight down the middle to create two right angled triangles.
What do you use Pythagoras for?
An accurate measurement of the hypotenuse and to find unknown sides.
True or False: Triangle angles add up to 180 degrees.
True.
