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3 years ago

Square that I=79 mm and w=58 what's the area and perimeter of the square ?

Mathematics

1 answer:

igomit [66]3 years ago

8 0

The area is 79 x 58 = 4582
The perimeter is (79 x 2) + (58 x 2) = 274

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How do I find both answer for this question??

Paha777 [63]

Answer:

(a) 46°

(b) 86°

Step-by-step explanation:

When the secants cross externally (figure a), the angle where they cross is half the difference of the subtended arcs.

When they cross internally (figure b), the angle is half the sum of the subtended arcs.

Half the difference of arcs VW and VX is ...

∠VYW = 1/2(160° -68°) = 46°

m∠VYW = 46°

Half the sum of arcs AB and CD is ...

∠CED = 1/2(arc AB +arc CD)

2×∠CED = arc AB +arc CD . . . . . multiply by 2

2×∠CED -arc AB = arc CD . . . . . subtract arc AB

arc CD = 2×85° -84° = 86°

m arc CD = 86°

4 0

3 years ago

M is the incenter of triangle ABC. Find the lengths of MD and DC. (Look at pic)

Deffense [45]

Answer:

Part 1) $MD=9\ units$

Part 2) $DC=12\ units$

Step-by-step explanation:

Step 1

Find the length of MD

we know that

The incenter is the intersection of the angle bisectors of the three vertices of the triangle. Is the point forming the origin of a circle inscribed inside the triangle

In this problem

$MD=ME=MF$ ------> is the radius of a circle inscribed inside the triangle

we have that

$MF=9\ units$

therefore

$ME=9\ units$

$MD=9\ units$

Step 2

Find the length of DC

we know that

In the right triangle MDC

Applying the Pythagoras theorem

$MC^{2} =MD^{2}+DC^{2}$

we have

$MD=9\ units$

$MC=15\ units$

substitute

$15^{2} =9^{2}+DC^{2}$

$DC^{2}=225-81$

$DC=\sqrt{144}\ units$

$DC=12\ units$

6 0

4 years ago

Shaun is 4 years older than her sister Charmaine. If the sum of their ages is 16, how old is Charmaine?

skad [1K]

Step-by-step explanation:

$let \: the \: age \: of \: charmaine \: be \: x$

$according \: to \: question$

$4 + x = 16$

$x = 16 - 4$

$12$

$so \: the \: age \: of \: shaun \: is \:$

$x + 4$

$12 + 4$

$16$

hope it helps if it helps don't forget to like and mark me

4 0

3 years ago

Hi please help me<br> Thank you

Mars2501 [29]

Answer:

a 7 b5

Step-by-step explanation:

can you mark mee braerlit

6 0

3 years ago

PLS HELP ME I ADDED SCREENSHOT i made sure to add it this time

iVinArrow [24]

Answer:

-(400/9)

Step-by-step explanation:

-44(4/9)

answer A

4 0

3 years ago