Question

Find the side length, b.

Answer 1

Answer:

b = 9.2 (Rounded to the nearest tenth)

Step-by-step explanation:

ABC is a right-angled triangle at B.

Then ,according to the Pythagorean theorem:

$b = \sqrt{a^2 + c^2}$

  $= \sqrt{6^2 + 7^2}$

 $= \sqrt{36 + 49}$

 $= \sqrt{85}$

 $=9.219544457293$