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Naddik [55]
3 years ago
8

What is the diameter of a circle with a radius of 5.4 cm

Mathematics
1 answer:
BabaBlast [244]3 years ago
5 0

Answer: 10.8 cm.

Step-by-step explanation: The diameter of a circle is 2*radius. 2*5.4 = 10.8 so the answer is 10.8 cm.

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In spherical geometry, all points are points on the surface of a sphere. A line is a circle on the sphere whose diameter is equa
mamaluj [8]

Answer: It is not possible that two triangles that are similar and not congruent in spherical geometry.

Step-by-step explanation:

For instance, taking a circle on the sphere whose diameter is equal to the diameter of the sphere and inside is an equilateral triangle, because the sphere is perfect, if we draw a circle (longitudinal or latitudinal lines) to form a circle encompassing an equally shaped triangle at different points of the sphere will definately yield equal size.

in other words, triangles formed in a sphere must be congruent and also similar meaning having the same shape and must definately have the same size.

Therefore, it is not possible for two triangles in a sphere that are similar but not congruent.

Two triangles in sphere that are similar must be congruent.

8 0
3 years ago
Please Help i am on a time limit!! will give brainliest
Oksi-84 [34.3K]

Answer:

C. 72 sorry if its wrong

Step-by-step explanation:

trapezoid formula : A= 1/2h(B+b)

plug in:

A= 1/2×6(10+14)

A= 3(24)

A= 72

6 0
3 years ago
How do I graph this someone plz tell me.
hodyreva [135]
Easy. your starting point is going to be at -2 on the y-axis. then from that point (-2) you're going to go down 1 and then over 2. then draw a straight line through those two points. The line should be a negative line.
7 0
3 years ago
Simplify expression:<br> 3^{−(4a+1)} −3^{−(4a−1)} + 3^{−4a}
lyudmila [28]
3^{-(4a+1)}-3^{-(4a-1)} + 3^{-4a} =3^{-4a-1 }-3^{- 4a+1 } + 3^{-4a}=\\ \\=3^{ -4a }*3^{-1}-3^{ - 4a }*3^1 + 3^{-4a} =3^{-4a}(3^{-1}-3+1)=3^{ -4a }*(\frac{1}{3}-2)=\\ \\=3^{ -4a }*(-1\frac{2}{3})=3^{ -4a }*(-\frac{5}{3})=3^{ -4a }*(-5)*\frac{1}{3} =-5 *3^{ -4a }*3^{-1}=\\ \\ =-5 *3^{ -4a +(-1)}=-5 *3^{ -4a -1}


3 0
3 years ago
Find the value of x for the rectangle
Anit [1.1K]
(x+3)(2x-6)=26

2x(to the second power)-18=26

2x(to the second power) -18-26=26-26

2x(to the second power)-44 = 0

x=square root of 22,x= negative square root of 22

decimal form : x = 4.69042,x= -4.69042
5 0
3 years ago
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