Answer:
A
Step-by-step explanation:
The student must have thought that every single arrowhead is a line of symmetry, so since there are 10 arrowheads, there must be 10 lines of symmetry. This is incorrect because if you look closely at the diagram, each line has 2 arrowheads, so the student is overcounting by a factor of 2. They should have just counted the number of lines, not arrowheads. Therefore, there must be 10/2 = 5 lines of symmetry, not 10. Hope this helps!
9/10 - 11/12
Multiply both sides to find a common denominator in this case it’s 60
54/60 - 55/60
Then the answer would be -1/60
Okay so i cant figure out the first one, but the second one looks like -7:3
Area is length x width
24 x 18 = 432
The area is 432 feet
hope this helps
Answer: 2
Step-by-step explanation:
Multiply by 2 each side and the result will give the numbers of the larger triangle.
