If the sides of a triangle are 3 cm, 4 cm and 6 cm long, determine whether the triangle is a right-angled triangle.

Question

Philoid · Accepted Answer

We have,

AB=3cm, BC=4cm, AC=6cm

∴ AB^{2 =} 3²=9

BC^{2 =} 4² =16

AC²=6²=36

Since AB²+BC²≠ AC²

SO Triangle is not a right angle.