explain pythagoras theorem and give 1 example
Here is the answer to your query.
In a right triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides of the triangle.
In a right triangle, side opposite to the 90° is always the hypotenuse.
∆ABC is a right triangle, right angled at B.
∴ AC2 = AB2 + BC2 (Pythagoras Theorem)
ΔABC is a right triangle right angled at B. If AC = 25 cm and AB = 15 cm, then find the side BC.
ΔABC is a right-angled triangle, right-angled at B.
∴AC2 = AB2 + BC2 (Pythagoras theorem)
⇒152 + BC2 = 252
⇒BC2 = 252 − 152
⇒BC2 = 625 − 225
⇒BC2 = 400
⇒BC2 = 202
∴ BC = 20 cm