MATHEMATICS HIGH SCHOOL

05.03)Calculate the area of the regular pentagon below: A regular pentagon with side length of 11.8 inches and dotted line from center to middle of side of 8.1 inches. 164.025 square inches 238.95 square inches 351.78 square inches 477.9 square inches

Answers

Answer 1

Answer:

Answer:

The correct answer is 238.95 square inches

Step-by-step explanation:

Regular Pentagon : A quadrilateral having five sides each of equal length is called regular pentagon.

Side length of pentagon, a = 11.8 inches

$\text{Area of regular pentagon = }(1)/(4)\cdot \sqrt{5\cdot (5+2\cdot √(5))}* a^2\n\n\implies\text{Area = }(1)/(4)\cdot \sqrt{5\cdot (5+2\cdot √(5))}* (11.8)^2\n\n\bf\implies\textbf{Area = }239\textbf{ square inches}$

Hence, The correct answer is 238.95 square inches as it is approximately equal to 239 square inches.

Answer 2

Answer:

Answer:

The answer is 477.9

Step-by-step explanation:

What you're going to do is base x height. Then your going to multiply you're answer to that by how many sides there are. so for this it going to be: 8.1 x 11.8 = 95.58. 95.58 x 5 = 477.9

Hope this helps!

Have an amazing day!

~Lola

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A worker has a gross wage of $560 per week and deductions of ; $180 loan repayments, $145.60 tax,

Answers

Gross wage = 560
loan repayments = 180
tax = 145.60

Net gross wage = 560 - [ 180+145.60 ]
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On a map, Julia's home is 8.5 in. from the library. If the map scale is 1 in.: 0.25 mi, how many miles from the library does Julia live?

Answers

Just multiply.

$\sf8.5*0.25=\boxed{\sf2.125}$

If the map scale is 1 inch: 0.25 miles, then we can multiply 0.25 x 8.5 to get our answer. 0.25 x 8.5 = 2.125, so Julia's home is 2.125 miles away from the library. :)

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