Dos lados de un triángulo tienen largos de a pulgadas y b pulgadas, donde a < b. ¿Qué expresión, a – b o b – a, tiene sentido en esta
situación? Describe lo que representa la expresión

(2,9)

i think thats the answer i checked it on google

answer is because 4×10=40

and 98×4= is 392

40,392

can someone me: the midsegment through the legs of an isosceles triangle is 4 in. find the sides of the triangle if its perimeter is 20 in. ,   and point g is the centroid of the right △abc with hypotenuse ab=18 in. find cg.