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3 years ago

Geometry Question Find the area of the circle

Mathematics

2 answers:

gtnhenbr [62]3 years ago

8 0

Answer:

the area of the circle

= 706.5 cm²

Step-by-step explanation:

r = 1/2d

r = 1/2 × 30

r = 15 cm

$\boxed{ \bold{formula = \pi \: {r}^{2} }}$

= 3.14 × 15 × 15

= 706.5 cm²

oee [108]3 years ago

5 0

Answer:

Area of the circle = 706.5 cm²

Step-by-step explanation:

Diameter = 30cm

Radius = 15cm

Area of the circle=πr²= 3.14(15)²= 3.14×225 = 706.5 cm²

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A cone has a volume of 942 in.³ and a height of 9 inches what is the radius of the cone use 3.14 for pie

bija089 [108]

Answer:

r = 51.96 inches

Step-by-step explanation:

$V_{cone} = \pi {r}^{2} h \\ \\ \implies \: r^{2} = \frac{V_{cone}}{\pi h } \\ \\ \implies \: r^{2} = \frac{942}{3.14 {(9) } }\\ \\ \implies \: r^{2} = \frac{942}{3.14 {(9) } } \\ \\ \implies \: r^{2} =2700 \\ \\ \implies \: r= \sqrt{2700} \\ \\ \implies \: r=51.96 \: inches$

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1 year ago

Write each number as a product of the GCF and another sum. Then use the Distributive Property to rewrite the sum. 45 + 30 = (15

Lorico [155]

Answer:

x=5/2

Step-by-step explanation:

Calculate, rewrite, remove the paretheses

Collect the like terms

Swap sides 75=30x swap to 30x=75

Then divide both sides

3 0

2 years ago

PLEASE I NEED THIS!! Which quadrilateral(s) have the same attributes as a rhombus

uranmaximum [27]

Answer:

The correct answer is square and parallelogram

Explanation:

If you turn the rhombus around it will turn into a square

8 0

2 years ago

Can someone please helppp will give you lots of points and brainliest

harkovskaia [24]

4. SOLVE FOR X:

Using the Alternate Interior Angles Theorem, we know that the 67 degree angle is congruent with the (12x - 5) degree angle. With this information, all I have to do is set the two equal to each other and solve for x.

67 = 12x - 5

67 + 5 = 12x - 5 + 5

72/12 = 12x/12

6 = x

x = 6

SOLVE FOR Y:

Using the Vertical Angles theorem, we know that angle y must be congruent to the 67 degree angle.

y = 67 degrees.

5. SOLVE FOR Y:

Alternate exterior angles: 6(x - 12) = 120

6x - 72 + 72 = 120 + 72

6x/6 = 192/6