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kipiarov [429]
3 years ago
8

What is the approximate perimeter of the figure? A. 18.8 cm B. 10.71 cm C. 7.7 cm D. 4.71 cm

Mathematics
2 answers:
larisa [96]3 years ago
5 0
For perimeter you can find it 2 ways:

l=length, w=width
(2)l+(2)w=perimeter

or just:

l+l+w+w= perimeter

Hope this helps!!!
olya-2409 [2.1K]3 years ago
4 0
All you have to do to find it use the formula 

o find the perimeter of a polygon, take the sum of the length of each side. The formula for perimeter of a rectangle is<span> To find the perimeter of a regular polygon, multiply the number of side</span>s by the length of one side.
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3 years ago
Examine the intersection of these lines:
Leto [7]

Answer:

∠B and ∠F

∠F and ∠E . . . already listed in the problem statement, so may not be considered an "other pair"

Step-by-step explanation:

∠C and ∠F are vertical angles, so are congruent. Then any angle complementary to one of those will also be complementary to the other.

Likewise, ∠B and ∠E are vertical angles and congruent. Any angle complementary to one of them will also be complementary to the other. Here, ∠E and ∠F are listed as complementary, so we know ∠B and ∠F will be also.

3 0
2 years ago
What is x given triangleABC ~triangleDBE?
denis-greek [22]

x = 37.5 (or) \frac{75}{2}

Solution:

Given \triangle A B C \sim \triangle D B E.

Let us take BE = x and BC = 25 + x.

To determine the value of x:

If two triangles are similar then the corresponding angles are congruent and the corresponding sides are in proportion.

$\frac{AC}{DE}=\frac{B C}{B E}

$\frac{50}{30} =\frac{25+x}{x}

Do cross multiplication, we get

50x=30(25+x)

50x=750+30x

Subtract 30x from both sides of the equation.

20 x=750

Divide by 20 on both sides of the equation, we get

x = 37.5 (or) \frac{75}{2}

Hence the value of x is 37.5 or \frac{75}{2}.

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Read 2 more answers
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