Answer:
424 ft and 3 inches
Step-by-step explanation:
To calculate the diagonal of a square, multiply the length of the side by the square root of 2 --> d = a√2
a² + a² = diagonal²
diagonal = √(a² + a²) = √(2 x a²) which simplifies to diagonal = a√2
If area is given --> d = √(2*area)
Knowing square perimeter --> d = (perimeter/4)*√2
Answer:
81
Step-by-step explanation:
<span>-7 x (-9) = +63
because if we multiply negative by negative we obtain +</span>
Answer:
15.
Step-by-step explanation:
The new average will be 11 + 4 = 15.
