Question

In trangle ABC if a=4, b=5 ,c=7 show that the triangle ABC is obtuse angled.

Answer 1

Triangle ABC if a=4, b=5 ,c=7 is obtuse angled.

Step-by-step explanation:

Given : In triangle ABC if a=4, b=5 ,c=7.

To show : The triangle ABC is obtuse angled ?

Solution :

Triangle ABC is obtuse when $a^2+b^2<c^2$ is true.

Here, a=4, b=5 ,c=7

Substitute the values,

$(4)^2+(5)^2<(7)^2$

$16+25<49$

$41<49$

It is true.

Therefore, triangle ABC if a=4, b=5 ,c=7 is obtuse angled.

#Learn more

Angle a=angle b+angle c,show that abc is a right angle trangle​

https://brainly.in/question/9983690