CSEC Maths - Pythagoras' Theorem

[@Mrkervel]

Sir thank you. You broke it down to its simplest form to understand. Greatly appreciated

[@anthoneymctaggart1499]

i learned something i didn't know how to do this from 9th grade now i do thank you sir

[@alexsishonyghan8862]

thank you very helpful

[@nicholasarthur1707]

Alexsis Honyghan 1 j,

[@alexsishonyghan8862]

+Nicholas Arthur ?

[@ayannalewis8470]

Afternoon sir

[@c.c2373]

if the triangle is not labeled u can write a or b first right?

[@CSECMathematics]

If not labelled you can use what you wan't just make sure that the square of the hypotenuse is equal to the sum of the square of the other two sides

[@kay-celiathomas3196]

Where 16 come from?

[@venomanic]

cuz 4x4 is 16

[@sinderamnarimne423]

Thank you so much

[@CSECMathematics]

No problem

[@deborahsamuels6274]

i did it the shorter way tho by subtractracting the square number the square root it

[@c.c2373]

why couldnt you use Tan here?

[@CSECMathematics]

You can only use the trig ratios sin, cos and tan if the triangle is a right angled triangle and they provided use with an angle.

[@CSECMathematics]

Remember the following: 1. Only use sin, cos and tan when the triangle is a right angled triangle and they provide us with an angle. 2. Use the cosine rule when they give you all three sides only OR when they give use an angle and the lengths on either side of the angle. The cosine rule applies to triangles which are NOT right angled. 3. Use the sine rule when they give use two sides and an angle opposite one of the sides OR two angles and a side opposite one of the angles. The sine rule applies to triangles which are NOT right angled.

[@melissasingh5294]

Thank you...

[@darrian_876]

Learning

[@ayannalewis8470]

90 right angle triangle

[@ayannalewis8470]

C=32+42=C9+16=25=C=5

[@ayannalewis8470]

a2 +b2 =C