Trigonometry Question PQR is a triangle with sides PQ=4cm, PR=6 cm and QR=3cm. Check whether the triangle is right angles or not?Give reasons for your answer..

Triangle is not a right angled triangle.

Step-by-step explanation:

PQ = 4cm, PR = 6 cm and QR = 3cm

According to the Pythagorean theorem, If it is a right angled triangle then the square of the longest side is equal to the sum of squares of other two sides.

here, longest side is PR.

As they are not equal so the triangle is not right angles triangle.

step-by-step explanation:

if you want to solve percent error follow these steps.

1. subtract the accepted value from the experimental value.

2. take the absolute value of step 1.

3. divide that answer by the accepted value.

4. multiply that answer by 100 and add the % symbol to express the answer as a percentage.

if you want to solve percent of change just do this.

1. work out the difference (increase) between the two numbers you are comparing.

2. divide the increase by the original number and multiply the answer by 100. if your answer is a negative number then this is a percentage decrease.

hope this : )