Triangle abc has perimeter 22 cm. ab= 8cm bc=5cm by calculation deduce whether triangle abc is a right-angled triangle.

The perimeter is 22cm therefore the remaining side is 22-8-5=9 cm. A right triangle follows the Pythagorean theorem which states that any side is equal to the square root of the sum of the squares of the other side or A=B2+C2. Using this we can get side AB and see if we can get it using the Pythagorean theorem. 52+92=10.30 cm. therefore, triangle ABC is not a right-angled triangle

an advantage of the standard deviation is that it increases as the dispersion of the data increases. e. the interquartile range is preferred when the data are not skewed or no have outliers. an advantage of the standard deviation is that it uses all the observations in its computation.

1. 34

2. 268

3. x=14.4

step-by-step explanation: