Answer:
x = ~8.9
Step-by-step explanation:
a^2 + b^2 = c^2
c is the long side
a and b are the other two shorter sides
this means
x^2 + 19^2 = 21^2
x^2 + 361 = 441
x^2 = 441- 361
x^2 = 441- 361
x^2 = 80
square root of 80 = ~8.9
x = ~8.9
I'm not sure if this is right, but I multiplied 115 by 4 and got 460- Try that? ;^;
Answer:
You need to use the ruler to measure the sides. Find the area of the whole square and subtract that from the area of the white square. That's your answer.
Answer:
The answer is d I just got that one:)
