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Mathematics

1 answer:

nlexa [21]3 years ago

6 0

First step is to plot all the given coordinates in the xy plane.

Notice that after plotting the points A, B, C and D, we have got the figure ABCD is a trapezium with bases AD = 4 units, BC = 6 units and height: DE= 5 units.

Formula to find the area of trapezium is:

Area = $\frac{(AD+BC)}{2} *DE$

= $\frac{4+6}{2} *5$

= $\frac{10}{2} *5$

= 5 * 5

= 25 square units.

So, third choice is correct.

Hope this helps you!

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Help on math problem

Anvisha [2.4K]

Das is similarity

the 2 triangles are similar because of math ( don't remember which theorem or whatever)

so since similar

we have to find the bottom length
use right triangle properties
a²+b²=c²
14²+5.5²=c²
196+30.25=c²
226.25=c²
√226.25=c

ten, we do similarity

the hyptonuse of smaller triangle to base of smaller triangle is √226.25:5.5
since the triangles are similar, that should be equal to the ratio of the hypotonuse of the largger triangle to the base, which is x:√226.25

so
x/√226.25=√226.25/5.5
times both sides by √226.25
x=226.25/5.5
x≈41.1363636

the height of screen is 6 less than total
41.13636-6=35.13636

height of screen is about 35ft

5 0

3 years ago

Factor -3x - 3y - 3z.<br> 3(-x – y + z)<br> 3(x - y - z)<br> -3(x + y + z)<br> -3(x - y - z)

abruzzese [7]

3rd option is the correct answer

8 0

2 years ago

Read 2 more answers

An object consisting of two endpoints and all of the points between them

Over [174]

that'd be a segment.

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