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Ray Of Light [21]
3 years ago
9

How many acute/obtuse/right angles does a pentagon have

Mathematics
1 answer:
KengaRu [80]3 years ago
4 0
5 obtuse no acute and no right
You might be interested in
25 POINTS
Semenov [28]

If the slope of AB = CD and BC = AD it's a parallelogram:

Slope of AB = 6+1 / -9+5 = -7/4

CD = -2-5 / 3+1 = -74

These are equal.

BC = 5-6 / -1 +9 = -1/8

AD = -2 +1 / 3+5 = -1/8

These are also equal so it is a parallelogram.

Now to find if the diagonals are perpendicular find the slope of the perpensicular points:

AC = 5 +1 / -1 +5 = 6/4 = 3/2

BD = 6+2 / -9 -3 = 8/-12 = -2/3

Because BD is the reciprocal of AC, this means they are perpendicular.

And because AB is not perpendicular to AD ( AB and AD are not reciprocals) it is a rhombus.

5 0
3 years ago
What is the diameter of a cone with height 8 m and volume 150 m3 ? (1 point 7.5 m 15 m?
Hitman42 [59]
This is the concept of volume of solid materials, we are required to find the diameter of cone with height 8 and volume 150 m^3.
volume of cone is given by;V=1/3 (pi*r^2*h)
making r^2 the subject we get;
V/(pi*h)=r^2
inserting the values in our formula we get:
150/(pi*8)=r^2
r^2=5.97
thus;
r=sqrt(5.97)=2.44
But ;
diameter=2*radius
thus
diameter=2.44*2
=4.88 m
3 0
3 years ago
Can you graph this equation?<br>0.5s+4a=15<br>is it possible?​
Gwar [14]

Answer: look at the picture of you want me to solve s or a here

Step-by-step explanation: hope this help:)

7 0
3 years ago
Type the correct answer in the box. Write your answer as a whole number. The radius of the base of a cylinder is 10 centimeters,
lana [24]
I'm going to try to do it in shorter time without calculator

cone is used to fill cylinder
conevolume times x=cylindervolume
so
x=cylinderv/conev


cylinderv=hpir^2
conevolume=1/3hpir^2

cylinder:
v=hpir^2
r=10
h=20
v=20*pi*10^2=2000pi

cone=1/3hpir^2
r=5
h=10
v=1/3(10)pi5^2=250pi/3

vcylinder/vcone=2000pi/(250pi/3)=6000pi/250pi=600/25=24


answer is 24 times
(2m46s1<span>1)</span>
3 0
3 years ago
Read 2 more answers
If one feather weighs 700 milligrams, how much will 37 identical feathers weigh plus the basket they are placed in which weighs
hjlf

Answer: 25,900 milligrams, but if the basket is included it would be 74,900 milligrams.

Hope this helps;)


4 0
3 years ago
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