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Mathematics 11 Online
OpenStudy (anonymous):

What is the area of the figure? https://static.k12.com/calms_media/media/381000_381500/381290/2/57636c518573add2dac05c3e75e551672caed213/53018_question.jpg will medal and fan

OpenStudy (anonymous):

4in * 13in + 4in * 6in + 4in * 13in = 52in + 24in + 52in =

OpenStudy (anonymous):

128?

OpenStudy (anonymous):

Yes

OpenStudy (anonymous):

can you stick around for a few more

OpenStudy (anonymous):

yea sure

OpenStudy (anonymous):

Which phrase best defines a parallelogram? A. at least two right angles B. four congruent angles C. four congruent sides D. two pairs of parallel sides

OpenStudy (anonymous):

i think b

OpenStudy (anonymous):

A parallelogram is a quadrilateral with two pairs of parallel sides.

OpenStudy (anonymous):

Should i put the next question up

OpenStudy (anonymous):

Sure

OpenStudy (anonymous):

The area of a rectangle is 61.64 square feet and the length is 9.2 feet. What is the width of this rectangle?

OpenStudy (anonymous):

Do you know the formular for the area?

OpenStudy (anonymous):

\[Length*Width = Area\]

OpenStudy (anonymous):

This gives you one equation, with 1 variable. \[9.2*x=61.64\] Now you solve x

OpenStudy (anonymous):

In order to solve x, you divide with 9.2 on both sides.

OpenStudy (anonymous):

6.7

OpenStudy (anonymous):

Yes

OpenStudy (anonymous):

Gene wrote this equation for the area of a rectangle. 26.4w = 285.12. What is the width (w) of this rectangle? A. 10.8 units B. 7527.2 units C. 11.0 units D. 258.7 units

OpenStudy (anonymous):

What do you think? It is the same equation as the last one. solve w

OpenStudy (anonymous):

A maybe

OpenStudy (anonymous):

Yes, \[285.12/26.4 = 10.8\]

OpenStudy (anonymous):

The area of a triangle is 45.5 square meters and the base is 10 meters. What is the height of this triangle? A. 455 m B. 4.55 m C. 9.1 m D. 227.5 m

OpenStudy (anonymous):

The formular for a triangle is: \[1/2*base*hight = area\]

OpenStudy (anonymous):

So solve the height: \[Height = \frac{ 2*Area }{ Base }\]

OpenStudy (anonymous):

I think a

OpenStudy (anonymous):

What is \[\frac{ 2*Area }{ Base } = \frac{ 2*45.5 }{ 10 } =?\]

OpenStudy (anonymous):

91?

OpenStudy (anonymous):

It is 91/10 = 9.1, so the answer is C

OpenStudy (anonymous):

What is the area of this rectangle in square feet? A. 288 square feet B. 24 square feet C. 216 square feet D. 72 square feet

OpenStudy (anonymous):

i think 24

OpenStudy (anonymous):

The area is \[length*width\]

OpenStudy (anonymous):

Yes, that is correct, 6*4 = 24

OpenStudy (anonymous):

i have like 4 i need you too check

OpenStudy (anonymous):

Sure

OpenStudy (anonymous):

What is the area in square millimeters of a rectangle with a width of 8.7 centimeters, and a length of 9.3 centimeters? A. 80.91 mm2 B. 8091 mm2 C. 80,910 mm2 D. 809.1 mm2

OpenStudy (anonymous):

i got b

OpenStudy (anonymous):

I get it to \[8100mm^2\], are you sure that isnt an option? Calculations: \[8.7cm*9.3cm = 81cm^2 = 8100mm^2\]

OpenStudy (anonymous):

I got it mastered Thanks You so much

OpenStudy (anonymous):

You are welcome. :)

OpenStudy (anonymous):

I fanned you and medal you

OpenStudy (anonymous):

Thanks, have a great day :)

OpenStudy (anonymous):

You too

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