The denominator would still be the same you placed the marble back into the bag
The answer is 19.6 cm^2
you should find the height of the triangle by heron formula: it will be 9.8
so the area is

good luck
Answer:
1: 9 questions incorrect and 41 correct
2: There are a total of 35 students. 21 girls and 14 boys.
I pray to hod for yourgood day