All categories

4 years ago

The circumference of Circle F is 72 cm. What is the length of Arc DE (the minor arc)?

Mathematics

2 answers:

Alja [10]4 years ago

5 0

Answer:18 cm

Step-by-step explanation:

apex

Tom [10]4 years ago

4 0

You need to first set up the equation:

It would look like 90 divided by 360 multiplied by the given circumference which is 72 cm.

So 90 / 360 x 72

Simply the fraction above, it will give us:

¼ x 72

So the answer would be 18 cm that is the length of DE (minor arc)

You might be interested in

600+600-200 Giving Brainliest

Mila [183]

Equation Answer is 1,000!

7 0

3 years ago

Read 2 more answers

An observer stands 25 feet from the base of a flagpole and watches a flag being lowered at a rate of 5 ft/sec. Determine the rat

Sedaia [141]

Answer:

0.1 rad/s

Step-by-step explanation:

Since the distance from or to the flagpole is not given, I will assume. And my assumption is 50 ft

Now, the elevation angle A = 45 degrees, converting to radians, we have π/4 radians

Remember that the tan of an angle is OPP/HYP, and so

tan A = h/25, on differentiating, we have

d tan A/dA = sec^2 A = (1/25) dh/dA

Next, we have

25 sec^2 A * dA/dt= dh/dt = 5

Making dA/dt the subject of formula, we have

dA/dt = (1/5) cos^2 A

but cos^2 A from trigonometry = 1/2, this means that

dA/dt = .1 radians/second

If you want to convert to degrees, your have

.1 Rad/s( 180 deg/rad) = 18 degrees/second

3 0

3 years ago

Which of the following reasons can be used to justify statement #4 in the proof?

8_murik_8 [283]

Answer:

SSS postulate because three sides of a triangle are are congruent

7 0

3 years ago

Read 2 more answers

What is the scale factor for pre-image IJKH to image MNOL?

solniwko [45]

Answer:

Step-by-step explanation:

Given are two rectangles MNOL and IJKH

MNOL is the image and IJKH is the preimage.

OBviously similarity is preserved between these.

Hence sides will be proportional

i.e. l1/l2 = w1/w2 = Scale factor k

This can also be written as

Scale factor square = $k^2=\sqrt{ \frac{areaI}{area2} }$

Scale factor = square root of ratio of rectangle areas

Find ratio as

$\frac{375}{135} =\frac{25}{9}$

k = Scale factor = square root of the above fraction

= $\frac{5}{3}$

5 0

4 years ago

Please answer please please

elena-14-01-66 [18.8K]

Answer:

6=2r please mark brainliest

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers