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Strike441 [17]
3 years ago
6

Find the area of the trapezoid

Mathematics
1 answer:
nata0808 [166]3 years ago
7 0

Answer:

15 + 23 = 38

38 x 9 = 342

342 x 1/2 (basically just dividing by 2) 171

Step-by-step explanation:

Formula of a trapezoid:

B1(base 1) + B2(base 2) x H(height) x 1/2(basically just dividing by 2)

In this case,

12 and 23 are your bases, 9 is your height.

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A sphere with radius 16 m is cut by a plane that is 9 m below its center. what is the best approximation of the area of the circ
alexdok [17]
The complete question in the attached figure

we know that
the equation of a sphere is
(x-h)²+(y-k)²+(z-l)²=r²

<span>let's assume that the center of the sphere is at the origin
</span>so
(h,k,l)-------> (0,0,0)
for r=16 m
(x-h)²+(y-k)²+(z-l)²=r²-------->  (x)²+(y)²+(z)²=16²

for z=9 m
(x)²+(y)²+(9)²=16²--------> (x)²+(y)²=256-81--------> (x)²+(y)²=175
the radius of the circle is r=√175 m
so the area of the circle A=pi*r²-----> A=pi*175-----> A=549.5 m²

the answer is 
the area of the circle is 549.5 m²

6 0
3 years ago
Jack began constructing ΔDEF to be congruent to ΔABC by copying side AC to form DF. Could Jack use ASA to complete the construct
Katarina [22]

Answer:

c. yes, he should copy ∠A and ∠C.

Step-by-step explanation:

just took the test

3 0
3 years ago
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Question 10 of 33
Eva8 [605]

A tessellation that uses only one type of regular polygon.

<h3>What is Polygon?</h3>

The definition of a polygon is given as a closed two-dimensional figure with three or more straight lines.

When we cover a surface with a pattern of a flat geometric shapes such that there should have no overlaps or gaps, then the surface is called a tessellation.

A regular tessellation is tessellation made up by using only one type of regular polygon. These are made up of entirely congruent regular polygons all that joining vertex to vertex.

Hence, A is the correct option.

Learn more about Polygon from:

brainly.com/question/10441863

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Evaluate. ( 2/5 )2 · 52 + 10
Yuki888 [10]
Your answer would be 51.6
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3 years ago
Question 22 of 25
mote1985 [20]

Answer

B

Step-by-step explanation:

Is the answer !

5 0
3 years ago
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