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3 years ago

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The length of a side of the base of a square pyramid is 10 inches. The height of each triangular face is 12 inches. What is the

surface area of the pyramid?
A. 70 in.2

B. 160 in.2

C. 300 in.2

D. 340 in.2

2 answers:

galben [10]3 years ago

8 0

Answer:

it's D

Step-by-step explanation:

sergeinik [125]3 years ago

5 0

Answer : D . 340 in. 2

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What is the area of the triangle in centimeters squared?

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Explanation:
The formula for area of a triangle is:
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REMEMBER, use the height that is perpendicular to the base. If not, your answer will be wrong

Use formula with given dimension of this triangle:
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FINAL ANSWER WITH UNIT OF MEASURMENT:
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The general form of the equation of a circle is x2 + y2 + 42x + 38y − 47 = 0. The equation of this circle in standard form is .

Readme [11.4K]

Answer:

(-21,-19)

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Standard form

Step-by-step explanation:

We are given the equation of circle

$x^2+y^2+42x+38y-47=0$

General equation of circle:

$x^2+y^2+2gx+2fy+c=0$

Centre: (-g,-f)

Radius: $\sqrt{g^2+f^2-c}$

Compare the equation to find f, g and c from the equation

$g\rightarrow 21$

$f\rightarrow 19$

$c\rightarrow -47$

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Radius (r) $=\sqrt{21^2+19^2+47}=\sqrt{849}$

Standard form of circle:

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