Question

Find the third side in the below triangle. What are such triangles called? [3 MARKS]

Answer 1

Properties : 1 Mark
Result : 1 Mark
Name : 1 Mark

Since, $\angle C$ is 90${}^o$, the following is a right angled triangle.

In a right angled triangle,
Base${}^2$ + perpendicular${}^2$ = hypotenuse${}^2$ (Pythagaros's Theorem)
Or, AB${}^2$ = BC${}^2$ + AC${}^2$
Or, AB${}^2$ = 16 + 9 = 25
Or, AB = $\sqrt{25}$ = 5