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3 years ago

PLEASE HELP AND FAST

Mathematics

1 answer:

seraphim [82]3 years ago

5 0

Since you know the value of s, you can substitute/plug it into the equation to find A:

A = 18s² Plug in 1/3 into "s" since s = 1/3

$A=18(\frac{1}{3} )^2$ Find (1/3)²

$A =18(\frac{1}{3} )^2=18(\frac{1}{3}*\frac{1}{3} )= 18(\frac{1}{9})$

A = 2 square inches

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2 years ago

Read 2 more answers

Find the area of the shaded portion of the figure. Each vertex of square ABCD is at the center of a circle. Round your answer to

IrinaK [193]

Given:

Each circle has a diameter of 2 inches each.

The outer square has a side length of 4 inches and the square ABCD has a side length of 2 inches.

To find:

The area of the shaded region.

Solution:

Each circle has a diameter of 2 inches. The square ABCD is at the center of each circle so it has a side length of 1 inch.

To determine the area of the shaded region, we subtract the area of the quarter-circles in the square ABCD from the area of the square ABCD.

The area of a quarter-circle $=\frac{\pi r^{2} }{4} .$

All the quarter-circles have a radius of 1 inch.

The area of 1 quarter-circle $=\frac{\pi r^{2} }{4} = \frac{\pi (1^{2}) }{4} = \frac{3.1415}{4} .$

The area of 4 quarter-circles $=4(\frac{3.1415}{4}) = 3.1415.$

So the area of the quarter-circles in the square ABCD is 3.1514 square inches.

The area of a square $= a^{2} .$

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The area of the shaded region $=4-3.1415=0.8585.$

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3 years ago

Find the length of the third side. If necessary, round to the nearest tenth.This is on Pythagorean theory

kenny6666 [7]

Answer:

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Step-by-step explanation:

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2 years ago