90 for the first one
120 for the second one
Perimeter is when you add all the sides together...but oh, no! There are two sides missing! So we have to find it. The horizontal like could be x and the vertical, the y. x would be 3 because one side is 7 and the other side is 4, so if we subtract them, we get 3. Same for the vertical, the y would be 3. (3+3=6)
Now we could add all sides to get the last choice, or 26 cm.
Answer:
1, 31, 53, 1643 are the factors
Step-by-step explanation:
The factor pairs of 1,643 are:
1 × 1643 = 1,643
31 × 53 = 1,643
