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### High School Mathematics - 28.14 Pythagorean Theorem - Examples

 Theorem: In a right angled triangle, the square on the hypotenuse is equal to the sum of the squares of the other two sides. If the length of the hypotnuse is c and the lengths of other two sides are b and a then according to the pythogorean theorem: c2 = a2 + b2 Converse: In a triangle if the square of one side is equal to the squares on the sums of the other two sides, then the angle opposite to the first side is a right angle. To prove: AB2 + BC2 = AC2 Example: Prove that the sum of the squares of the sides of a rhombus is equal to the sum of the squares of the diagonals. Directions: Solve the following problems. Also write at least 10 examples of your own.
 Q 1: The sides of a triangle are 7cm, 24cm, 25cm, check if this is a right angled triangle.noyes Q 2: The sides of a triangle are 50cm, 80cm, 100cm, check if this is a right angled triangle.yesno Q 3: A person goes 10 m due east and then 30m due north. Find his distance from the starting point.15m12m10m Q 4: A ladder is placed in such a way such that its distance from the wall to the foot of the ladder is 5 cm, its top reaches a height of 12m from the ground. Find the length of the ladder.12m15m13m Question 5: This question is available to subscribers only! Question 6: This question is available to subscribers only!