The base of a triangle is 3 units more than h it’s height .which expression represents its area

  C.  (1/2)h(h+3)

Step-by-step explanation:

If the height is h and the base is 3 more than the height, then the base is h+3.

The area of a triangle is given by the formula ...

  A = (1/2)bh . . . . where b represents the base length and h represents the height

Substituting the values for height and base length given in this problem, we have ...

  A = (1/2)(h+3)(h)

This expression for area is equivalent to ...

 (1/2)h(h+3)

what is the question?

step-by-step explanation:

  answer:

  write 548 as 500 + 40 + 8. multiply each addend by 5. then add the three products to get 2,740.