Answer:
40%
Step-by-step explanation:
a percentage can also be written as something over 100. x/100. to find the percentage you would set up the proportions as 12/30=x/100. then you cross multiply 12x100 and divide by 30. (this is called the bat and ball method). you end up with 40.
Answer:
1518
Step-by-step explanation:
Answer:
18 cm²
Step-by-step explanation:
Base * half height says 6*6/2 = 18.
The trick is to put the 90° angle at the base (rotate the triangle).
