Question

A triangle has three sides 19cm 12cm and 16 cm. is it a right triangle

Answer 1

Explanation:

A right triangle has one angle of 90.

If you add up all the angles ;

19+12+16= 47

It equals 47 so this is not a right triangle.

If it it is less than 90, it is an acute angle.

Therefore this angle is an acute triangle.