All categories

3 years ago

What is the approximate area of rectangle GHIJ? A: 902 B: 434 C: 672 D: 784

Mathematics

1 answer:

Julli [10]3 years ago

4 0

Answer:

B. 434

Step-by-step explanation:

sorry for the late response! it’s 434. I worked out the problem & took the test, B is the correct answer.

You might be interested in

20 points to answer and extra if it’s right!

malfutka [58]

Answer:

Step-by-step explanation:

Money lost. Keyword "lost". Ages, people, and height can't be negative. ( I guess people can be negative mentally but not physically)

8 0

3 years ago

I need help, please, please! Thank You

Evgen [1.6K]

Lol what is the question

3 0

3 years ago

Please help ASAP! Thanks! For the figures below, assume they are made of semicircles, quarter circles and squares. For each shap

bazaltina [42]

Answer:

Part 1) $A=36(\pi-2)\ cm^2$

Part 2) $P=6(\pi+2\sqrt{2})\ cm$

Step-by-step explanation:

Part 1) Find the area

we know that

The area of the shape is equal to the area of a quarter of circle minus the area of an isosceles right triangle

$A=\frac{1}{4}\pi r^{2}-\frac{1}{2}(b)(h)$

we have that the base and the height of triangle is equal to the radius of the circle

$r=12\ cm\\b=12\ cm\\h=12\ cm$

substitute

$A=\frac{1}{4}\pi (12)^{2}-\frac{1}{2}(12)(12)$

$A=(36\pi-72)\ cm^2$

simplify

Factor 36

$A=36(\pi-2)\ cm^2$

Part 2) Find the perimeter

The perimeter of the figure is equal to the circumference of a quarter of circle plus the hypotenuse of the right triangle

<em>The circumference of a quarter of circle is equal to</em>

$C=\frac{1}{4}(2\pi r)=\frac{1}{2}\pi r$

substitute the given values

$C=\frac{1}{2}\pi (12)$

$C=6\pi\ cm$

The hypotenuse of right triangle is equal to (applying the Pythagorean Theorem)

$AC=\sqrt{12^2+12^2}$

$AC=\sqrt{288}\ cm$

simplify

$AC=12\sqrt{2}\ cm$

Find the perimeter

$P=(6\pi+12\sqrt{2})\ cm$

simplify

Factor 6

$P=6(\pi+2\sqrt{2})\ cm$

6 0

3 years ago

Two angles are supplementary (add up to 180 degrees). The measure of one angle is ten more than the other. Find the measure of e

Aleonysh [2.5K]

Answer:

85° and 95°

Step-by-step explanation:

So, one angle is x, the other angle is x + 10. Using this, you can form an equation.

x + x + 10 = 180

Now, solve the equation.

2x + 10 = 180

2x = 170

x = 85

So, one angle is 85 while the other angle is 95.

85 + 95 = 180,

so we know that our answer is correct.

7 0

3 years ago

Find the measure of each angle indicated.

Brilliant_brown [7]

Answer:

90 degrees

Step-by-step explanation:

Sum of the angles in a triangle = 180°

Opposite angles are equal

For two parallel lines and a transversal,

corresponding angles are equal, and

alternate angles are equal.

45+45=90.

180-90=90

Plus, you can see that the angle forms a perfect 90 degree angle.

5 0

3 years ago