Question

Solve to find the missing value of the triangle using the formula of Pythagorean Theorem.

• A. $1$
• B. $2$
• C. $3$
• D. $4$

Answer 1

The correct option is C $3$

In a right triangle, $a^2+b^2=h^2$, where $a$ and $b$ are the lengths of the legs and $h$ is the length of the hypotenuse. This is called Pythagoras Theorem.
$a=?,b=4,h=5$
$a^2+4^2=5^2$
$25-16=$ $a^2$
$a^2$ $=9$
Taking square root on both the sides, we get
$a=3$