Hopes this helps please correct me if I am wrong:
Answer: 6cm
If there are x boys, there are 2x girls. boys+girls=27 gives x+2x=27. Solving, 3x=27 or x=9. Since there are 2x girls, there are 2*9=19 girls.
Answer:
6 sq. units
Step-by-step explanation:
The area of a triangle is base times height divided by 2.


