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3 years ago

Solve This Please!!! Easy!!!

Mathematics

1 answer:

krok68 [10]3 years ago

6 0

If you say its easy, then why don't you figure out yourself? Or ask the teacher?

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How many unique planes can be determined by four noncoplanar points?

marta [7]

Answer:

Four unique planes

Step-by-step explanation:

Given that the points are non co-planar, triangular planes can be formed by the joining of three points

The points will therefore appear to be at the corners of a triangular pyramid or tetrahedron such that together the four points will form a three dimensional figure bounded by triangular planes

The number of triangular planes that can therefore be formed is given by the combination of four objects taking three at a time as follows;

₄C₃ = 4!/(3!×(4-3)! = 4

Which gives four possible unique planes.

3 0

3 years ago

The cone and the cylinder below have equal surface area. True or false.

WARRIOR [948]

Answer:

False

Step-by-step explanation:

The surface area of the cone is

$V=\pi r^2 +\pi rl$

$SA=\pi r^2 +\pi\times r\times 2r$

$SA=\pi r^2 +2\pi\times r^2$

$SA=3\pi r^2$

The surface area of the cylinder is:

$SA=2\pi r^2 +2\pi rh$

$SA=2\pi r^2 +2\pi\times r\times r$

$SA=4\pi r^2$

3 0

3 years ago

Find the missing angle measure. then classify the triangle by its angles and by its sides.

iren [92.7K]

Answer:

Part a) The measure of the missing angle is $90\°$

Part b) The triangle of the figure is a right triangle

Part c) The triangle of the figure is a scalene triangle

Step-by-step explanation:

we know that

The sum of the interior angles of a triangle is equal to $180\°$

Let

x------> the missing angle

we know that

$x\°+50\°+40\°=180\°$

solve for x

$x=180\°-90\°=90\°$

The triangle of the figure is a right triangle --------> by its angles

Because the triangle has an angle measure of $90\°$

The triangle of the figure is a scalene triangle --------> by its sides

Because the three angles and the three sides measures are different

8 0

3 years ago

Read 2 more answers

Plz this is urgent someone plz plz plz plz plz worth 21 pt and brainlest

Damm [24]

Answer:

Step-by-step explanation:

500/(2*(4.4*3.2+3.2*2+2*4.4)) = 8.5382513661

4 0

3 years ago

A raffle is being held to raise money for wildlife conservation efforts. Ten different gift cards are being awarded. If 3,125 pe

Alex17521 [72]

Answer:

Your answer will be 0.9968

Step-by-step explanation:

Subtract 3,125 to 10 and then divide your answer to 3,125

6 0

3 years ago

Read 2 more answers