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3 years ago

What is a arc, radius, and diameter of a circle?

Mathematics

1 answer:

Kryger [21]3 years ago

7 0

Answer:

The circumference, which is the outside edge of the circle. The radius, which goes from any point on the circumference to the centre of the circle. The diameter, which joins the circumference through the centre of the circle.

Step-by-step explanation:

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In ABC, D∈AB so that AD;DB=1 : 3. If ACDB = 12ft2 Find AACD and AABC

Sergeeva-Olga [200]

Answer:

Area of $\triangle$ ACD = 4 $ft^2$

Area of $\triangle$ ABC = 16 $ft^2$

Step-by-step explanation:

Given that:

D is a point on AB.

and ABC is a triangle.

AD:DB = 1 : 3

Area of $\triangle$ CDB = 12 $ft^2$

Kindly refer to the attached image as per the given dimensions and values.

To find:

Area of $\triangle$ ACD and Area of $\triangle$ ABC = ?

Solution:

Formula for area of a triangle = $\frac{1}{2}\times Base \times Height$

The altitudes of triangles $\triangle$ CDB and $\triangle$ ACD are equal in dimensions.

Therefore the area of triangles $\triangle$ CDB and $\triangle$ ACD will be equal to the ratio of their bases.

Area of $\triangle$ ACD : Area of $\triangle$ CDB = AD: DB = 1 : 3

$\Rightarrow$ Area of $\triangle$ ACD = $\frac{12}{3} = \bold{4 ft^2}$

Area of $\triangle$ ABC = Area of $\triangle$ ACD + Area of $\triangle$ CDB = 12 + 4 = <em>16</em> $ft^2$

Therefore, the answer is:

Area of $\triangle$ ACD = 4 $ft^2$

Area of $\triangle$ ABC = 16 $ft^2$

3 0

3 years ago

X + 4 = 6 . Solve for x .

LuckyWell [14K]

Answer:

x = 2

Step-by-step explanation:

x + 4 = 6

=> x = 6 - 4

=> x = 2

4 0

2 years ago

Read 2 more answers

[Help Asap, Will Mark Brainliest] Question is in the image.

Mazyrski [523]

Answer:

y = 30

z = 115

Step-by-step explanation:

z° + 65° = 180°

(Exterior Angles on the same side of transversal)

z° = 180° - 65°

z° = 115°

z = 115

(5y - 85)° + z° = 180°

(Linear pair angles)

(5y - 85)° + 115° = 180°

(5y - 85)° = 180° - 115°

(5y - 85)° = 65°

5y - 85 = 65

5y = 65 + 85

5y = 150

y = 150/5

y = 30

6 0

3 years ago

THe yearly profits of a company is $35,000, but they have been decreasing 6% per year. What will be the profit in 8 years?

Elenna [48]

Answer:

The total money will be $113750(I think)

Just check other's answers.(or use a calculator.)

7 0

4 years ago

Select the term that is suggested by the figure

bulgar [2K]

I think it’s line segment

5 0

2 years ago