Evaluate 48×15^2-5^2×2×24 by using factorisation and algebraic identities.
1 answer:
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Answer:
Step-by-step explanation:
√a^4 is the same as:
√a × √a × √a × √a
group them as 2 pairs of
(√a × √a) × (√a × √a)
which makes
a × a
which is the same as
Answer: A=351.68 cm²
Step-by-step explanation:
To find the area of the shaded region, we would subtract the area of the circle by the area of the inner circle.
Area of Circle
Area of inner (white) circle
Now that we have the area to the circle and inner circle, we would subtract to find the area of the shaded region.