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allochka39001 [22]
3 years ago
13

What is the area, in cm2, of the smallest square that will contain a circle of radius 4 cm?

Mathematics
1 answer:
Georgia [21]3 years ago
6 0
D=2r=2·4=8 cm 
A  = L² (L=d)
A = 8² = 64 cm²
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If ∠C and ∠D are vertical angles and m ∠ C = x + 5 and m ∠ D = –2x + 80, what is m ∠ C?
amm1812

Answer:

m∠C=30°

Step-by-step explanation:

we know that

<u>Vertical Angles</u> are the angles opposite each other when two lines cross. They are always equal

so

m∠C=m∠D

substitute the given values

(x+5)\°=(-2x+80)\°

Solve for x

x+2x=80-5\\3x=75\\x=25

<em>Find the measure of angle C</em>

m∠C=(x+5)°

substitute the value of x

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3 years ago
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Distributive property for 144 divided by 8 (5th grade)
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18144 divided by 8 Distributive property
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