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Earn +20 ptsQ: What is the largest perfect square factor of 405?
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What is the square root of 40.5?
81 is the square root of 405. (81 x 5 = 405.)
What is the exact value of sin 405?
sin(405) = square root of 2 divided by 2 which is about 0.7071067812
What is the perimeter of a rectange if the areas 405 yd?
The perimeter of a rectangle cannot be calculated by just knowing the area unless the rectangle is a square. In which case the perimeter will be 4 x square root of the area.
Find the geometric mean of 405 and 5?
GM of two numbers is the square root of their product, in this case sqrt 2025 ie 45.
Is 405 degrees a reflex angle?
No. It is an acute angle!
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