Respuesta :

Answer:

24cm^2

Step-by-step explanation:

1/2Bh is the formula to find a triangle.

Round the 7.8 to an 8 and the 5.78 to a 6. Multiply 8 and 6, getting 48. Divide by 2 because you need 1/2 of the base×height.

48÷2=24