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2 years ago

What is the area of this composite figure?

Mathematics

1 answer:

Gelneren [198K]2 years ago

5 0

Answer:

249 centimeters squared

Step-by-step Explanation:

The area of the rectangle: l x w, where l is the length and w is the width.

= 15.5 x 18

= 279

Area of the smaller rectangle: l x w, where l is the length and w is the width.

= 4 x 7.5

= 30

We do not need this 30.

Area of the shaded region:

= 279 - 30

= 249 cm²

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What is the approximate circumference of the circle shown below?

Crank

Answer

Formula

$Circumference\ of\ circle = 2\pi r$

where r is the radius of a circle.

As shown in the image

Diameter of the circle = 16 .3 cm

$Radius\ of\ the\ circle = \frac{16.3}{2}$

= 8.15 cm

Put in the formula

$Circumference\ of\ circle = 2\pi\times 8.15$

$\pi = 3.14$

$Circumference\ of\ circle = 2\times 3.14\times 8.15$

= 51.2 cm (approx)

Therefore the circumference of a circle is 51.2cm (approx) .

Option (D) is correct .

8 0

3 years ago

Read 2 more answers

Which of the following is the equation of a circle with a radius of 10 cm and center at (–3, 6)?

Volgvan

The equation of the circle:

$(x-h)^2+(y-k)^2=r^2$

(h, k) - center

r - radius

We have:

$r=10\\(-3,\ 6)\to h=-3,\ k=6$

Substitute:

$(x-(-3))^2+(y-6)^2=10^2\\\\(x+3)^2+(y-6)^2=100$

4 0

2 years ago

Please help me with this answer

victus00 [196]

Answer: I believe it is c 4

Step-by-step explanation:

but im not sure

6 0

2 years ago

What is b if the area is 140 units

olga nikolaevna [1]

Answer:

what are the options?

Step-by-step explanation:

8 0

2 years ago

Match the statements in the table with the words/phrases contained in the word bank<br> Word Bank:

kykrilka [37]

Answer:

Circumcenter Incenter Centroid

Formed by intersection of Perp. Bisectors Angle bisectors Medians

Type of circle Circumscribed Inscribed No circle

Special property Equidistant from Equidistant from Center of mass

vertices Sides

6 0

3 years ago