What expression is equivalent to 13-(-21)
2 answers:
You might be interested in
Answer:
The third number is 84
Step-by-step explanation:
Given two numbers as 13 , 85
To make the triangle to be right angle , Pythagoras theorem is applied ,
i.e H² = P² + B²
Here H = 85 ,
Let perpendicular = x and base = 13
So, P² = H² - B²
Or, x² = 85² - 13²
Or, x² = 7225 - 169
Or, x² = 7056
i.e x = = 84
Hence, the third number to make it right triangle = 84 Answer