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anzhelika [568]

3 years ago

14

The length of the base of a triangle is 8.5 cm and its height is 5.4 cm. If the area of the triangle is half of the product of i

ts base length and height, the area of the triangle is

1 answer:

LenKa [72]3 years ago

4 0

Answer:

22.95

Step-by-step explanation:

.5*8.5*4.5

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Point E is the midpoint of AB and point F is the midpoint

GREYUIT [131]

The options are;

1) AB is bisected by CD

2) CD is bisected by AB

3) AE = 1/2 AB

4) EF = 1/2 ED

5) FD= EB

6) CE + EF = FD

Answer:

Options 1, 3 & 6 are correct

Step-by-step explanation:

We are told that Point E is the midpoint of AB. Thus, any line that passes through point E will bisect AB into two equal parts.

The only line passing through point E is line CD.

Thus, we can say that line AB is bisected by pine CD. - - - (1)

Also, since E is midpoint of Line AB, it means that;

AE = EB

Thus, AE = EB = ½AB - - - (2)

Also, we are told that F is the mid-point of CD.

Thus;

CF = FD

Point E lies between C and F.

Thus;

CE + EF = CF

Since CF =FD

Thus;

CE + EF = FD - - - (3)

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3 years ago

5/8 divided by 1 1/3 in lowest form

Shtirlitz [24]

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3 years ago

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Find the measure of an angle with measure between 0 degrees and 360 degrees that is coterminal with an angle measuring -865 degr

Juli2301 [7.4K]

Answer:

$\large\boxed{215^o}$

Step-by-step explanation:

$\text{Coterminal angle with}\ \alpha:\\\\\alpha+360^o\ and\ \alpha-360^o.\\\\\text{Firs\ step}\\\\-865^o:360^o=2\ and\ rest\ -145^o\\\\-865^o=-145^o\\\\\-145^o+360^o=215^o$

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3 years ago

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I just need help with this problem

sashaice [31]

Keeping in mind that the area of a circle is πr².

the actual area will just be the area of the rectangular backyard plus the pool, namely (10*20) + (π15²), which gives us an actual area of 200 + 225π.

now, we know the model and actual are on a 1:20 ratio.

$\bf \cfrac{model}{actual}\qquad 1:20\qquad \cfrac{1}{20}\qquad \qquad \cfrac{m}{200+225\pi }=\cfrac{1}{20}
\\\\\\
m=\cfrac{(200+225\pi )1}{20}\implies m=\cfrac{200+225\pi }{20}\implies m=\cfrac{200}{20}+\cfrac{225\pi }{2}
\\\\\\
m=10+112.5\pi$

5 0

3 years ago

Demi’s last 5 bowling scores were 68, 75, 90, 80. What was Femi’s mean score? A.72 B.75 C.77 D.79 D.

-Dominant- [34]

Complete Question:

Femi's last 5 bowling scores were 68, 75, 72, 90, and 80. What was Femi's mean score?

Answer:

Step-by-step explanation:

Given

Scores: 68, 75, 72, 90, and 80

Required

Determine the mean

The mean (M) of a data is calculated as thus:

$M = \frac{\sum x}{n}$

Where

n = number of data.

In this case,

n = 5

and

$\sum x$ = sum of data

So, the formula becomes

$M = \frac{68 + 75 + 72 + 90 + 80}{5}$

$M = \frac{385}{5}$

$M = 77$

<em>Hence, the mean is 77</em>

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3 years ago