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Alexus [3.1K]
3 years ago
6

NEED HELP ON THIS QUESTION

Mathematics
1 answer:
Tom [10]3 years ago
3 0
Answer: 288

Workings : 16 x 12 =192 (for bottom rectangle bit) 12x 16 =192 then divide 192 by 2 =96 add them together and its 288
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A central angle of a circle measures 1.5 radians. If the radius of the circle is 3 cm, what is the area of the related sector?
soldi70 [24.7K]

Answer:

Option B. 6.75\ cm^{2}

Step-by-step explanation:

we know that

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A=\pi r^{2}

we have

r=3\ cm

substitute

A=\pi (3^{2})=9 \pi\ cm^{2}

Remember that

2\pi radians subtends the complete circle of area 9 \pi\ cm^{2}

so

by proportion

Find the area of the related sector for a central angle of 1.5 radians

Let

x------> the area of the related sector

\frac{9 \pi}{2\pi}\frac{cm^{2}}{radians} =\frac{x}{1.5}\frac{cm^{2}}{radians}\\ \\x=9*1.5/2\\ \\x= 6.75\ cm^{2}

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3 years ago
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oksano4ka [1.4K]

Answer:

Step-by-step explanation:

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6 0
3 years ago
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(50 points) DOE contains points d(2 3) o(0 0) and e(5 1) which of the following angles are both adjacent and supplementary to DO
Alexxx [7]

Answer:

When you join points D(2,3),O(0,0)and E(5,1) which are not collinear it will form a triangle.

Now , Adjacent of ∠ DOE are [ ∠ ODE and ∠OED] .

As we know that  Sum of three interior angles of a triangle is 180°.

∠ DOE + ∠OED+∠EDO = 180°

∠DOE=180°- (∠OED+∠EDO)

Supplementary ,of ∠DOE is  (∠OED+∠EDO).






7 0
3 years ago
Can someone please help me? Round to nearest hundredth
SIZIF [17.4K]

Answer: x = 20

Step-by-step explanation:

We can use the pythagorean theorem:

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x^2 + 225 = 625

We can subtract 225 from both sides:

x^2 = 400

We can take the square root of both sides:

x = 20.

7 0
2 years ago
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Maslowich
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6 0
3 years ago
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