A triangle has sides with lengths of 11 mm 14 mm and 19 mm is it a right triangle?

no

Step-by-step explanation:

because 2 of the sides would be the same length or almost the same number

Not a right triangle

Step-by-step explanation:

I think the question is asking if this a right triangle?

In order to be a right triangle, the side lengths will need to follow Pythagorean theorem which says the two side legs of the triangle squared is equal to the hypothenuse squared or

+ = ; we can use the length given such as 11mm, 14mm and 19mm (assume is the hypothenuse)

+ =?

121 +  196 =? 361

317 ≠ 361; therefore it is not a right triangle

m∠a is 90°

m∠b is 40°

answer: the resulting cross section is a rectangle. solution: a plane parallel to the base of a triangular prism will intersect a cross section that is the same shape as its bases. so the cross section is a triangle.

step-by-step explanation: