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TiliK225 [7]
2 years ago
11

The given figure shows a circle with centre at o and angel AOB=90degree. If the radius the circle is 40c.m and pie=3.14; calcula

te the area of the unshaded portion of the circle
Mathematics
1 answer:
GREYUIT [131]2 years ago
3 0
A circle is 360° in total, so the unsheded part should be 270 degrees. to calculate arc area, just calculate the circle area x 270/360, so here it'll be 40 square x pi x 270/360 so the answer is 3768 cm2
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Which expression is equivalent to (18)2⋅(19)2
sladkih [1.3K]

The expression that is equivalent to the given expression where the expression is given as (18)2⋅(19)2 is (18 * 19)^2

<h3>How to determine which expression is equivalent to the given expression? </h3>

The expression is given as

(18)2⋅(19)2

Rewrite the above expression properly

So, we have

(18)^2 * (19)^2

The factors in the above expression have the same exponent.

So, the expression can be rewritten as

(18 * 19)^2

Hence, the expression that is equivalent to the given expression where the expression is given as (18)2⋅(19)2 is (18 * 19)^2

Read more about equivalent expression at

brainly.com/question/2972832

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5 0
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Answer:

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2 years ago
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