Answer:
a * c^2 = b
Step-by-step explanation:
you would want to multiply both sides of the equation by c^2
a * c^2 = b
That gets you this formula you can then plug your numbers in
Answer:
Perimeter: 14.2
Area: 9.2
Step-by-step explanation:
Simple times for area
simple plus for perimeter
23 can round to 20 and 21 can also round to 20 so all u do is 20x20=400 so 400 is your estimated answer