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3 years ago

Could someone help i don’t get this please

Mathematics

1 answer:

andreyandreev [35.5K]3 years ago

6 0

Answer:

Hello! Answer: Area = 66

What i did was cut them into triangles and used formula for finding triangles

I did 3.3 x 4 = 13.2 then I divide 2 and get 6.6

Then I multiply by 10 cause thats how many triangles will make up the polygon and get 66

Hope this helps!

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Find each missing measure for 1, 2, 3, and 4. Giving brainliest!

GaryK [48]

Answer:

a quadrilateral adds up to 360 degrees so each 4 siede figure is 360 degress

Step-by-step explanation:

1. add 108 + 59 + 119= 286 now do 360 - 286 = and you get 74

so that is how you get the answeres for the question , add the degrees then minus it by 360

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2. x = 234

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5 0

2 years ago

Read 2 more answers

Where mBD =70° and mCA = 170°

Nookie1986 [14]

Answer:

m∠BPD = 120

mBC + mAD = 120°

Step-by-step explanation:

according to intersecting chord theorem: The measure of the angle formed by two chords that intersect inside the circle is $\frac{1}{2}$ the sum of the chords' intercepted arcs.

m∠BPD = $\frac{1}{2}$ (M∠BD + M∠CA)

= $\frac{1}{2}$ (70 + 170)

= $\frac{1}{2}$ (240)

m∠BPD = 120

We know that a circle has a total of 360° around the center of circle. To find the measure of the remaining measure of angle of arcs, subtract them from the whole that is 360°

mBC + mAD = 360 - ( 70 + 170 )

= 360 - 240

mBC + mAD = 120°

8 0

3 years ago

A chain lying on the ground is 10 m long and its mass is 70 kg. How much work (in J) is required to raise one end of the chain t

DerKrebs [107]

Answer:

$W= 34.3 \frac{kg}{s^2} (4^2-0^2)m^2 =548.8 \frac{kg m^2}{s^2} =548.8 J$

Step-by-step explanation:

Data Given: m = 70 kg , g = 9.8 ms^-2, h =10m.

For this case we can use the following formula:

$W = \int_{x_i}^{x_f} F(x) dx$

For this case we need to find an expression for the force in terms of the distance. And since on this case the total distance is 10 m long we can write the expression like this:

$F(x) = \frac{ma}{10m}= \frac{mg}{10m} x$