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Inessa05 [86]
3 years ago
5

Which polyhedra (regular or irregular) have perfect symmetry (plane of symmetry and rotation of symmetry) and why ?

Mathematics
1 answer:
julia-pushkina [17]3 years ago
3 0

Answer:

regular

Step-by-step explanation:

because an irregular polyhedron is formed by polygons of different shapes where all the components are not the same.

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(6) Find the area of the triangle. If you get stuck, consider drawing a rectangle
masha68 [24]

Answer:

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Step-by-step explanation:

what are the numbers

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2 years ago
Find the volume of the given solid. under the surface z = 5xy and above the triangle with vertices (1, 1), (4, 1), and (1, 2)
Black_prince [1.1K]
So right now you see that you have x and y intercept right? Then plug those intercepts in equation that you have and solve for z. Which means z=5(1)(1) will be 5, 5(4)(1) will be 20, and 5(1)(2) will be 10. So, overall you have 5, 20, 10.
8 0
3 years ago
Given the line segment , state the ratio of the segment partitions as. Be sure to reduce fractions
Effectus [21]

Answer/Step-by-step explanation:

Line segment AB consists of segment AC and segment CB.

AC = 7 cm

CB = 21 cm

The entire segment, AB = 21 + 7 = 28cm

The ratio of the segments partitions can be stated as follows:

Ratio of AC to CB = AC:CB = 7:21 = 1:3 = \frac{1}{3}

AC is ¼ of AB (\frac{1}{1 + 3} = \frac{1}{4})

CB is ¾ of AB (\frac{3}{1 + 3} = \frac{3}{4})

4 0
3 years ago
Change the following subtraction expression to addition: 2 - 11
tester [92]

Answer:

I think it would be 2+ -11

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Can I have help with this one asap?
sasho [114]

Answer:

In Δ CFD , CD is the LONGEST side.

Step-by-step explanation:

Here, the given Δ CSD is a RIGHT ANGLED TRIANGLE.  

Now, as we know in a right triangle, HYPOTENUSE IS THE LONGEST SIDE.

So, in Δ CSD  SD is the longest side as SD = Hypotenuse.

Now, an altitude CF is drawn to hypotenuse SD.

⇒ CF ⊥ SD

⇒ Δ CFD is a RIGHT ANGLED TRIANGLE with  ∠ F = 90°

and CD as a hypotenuse.

⇒ In Δ CFD , CD is the LONGEST side.

Hence, CD is the longest side in the given triangle CFD.

6 0
3 years ago
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