Question

5. The lengths of the sides of some triangle are given below. Which of them are right angled? 20, 99, 101 ​

Answer 1

Answer:

It is not a right angled triangle

Step-by-step explanation:

Given:

$a = 20cm\\b=99cm\\c=101cm$

To find:

The triangle is right-angled it or not.

Solution:

Evaluate the sides of the triangle.

Apply Pythagoras’s Theorem,

$\Longrightarrow (101)^2 = (20)^2 + (99)^2\\\Longrightarrow 10200 = 400 + 7744\\\Longrightarrow 10201 = 8144\\\Longrightarrow 10201 \neq 8144$

$\bold{Therefore,}$ $\bold{it}$  $\bold{is}$ $\bold{not}$ $\bold{a}$ $\bold{right angle}$ $\bold{triangle}$

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