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3 years ago

What is the perimeter of a square whose diagonal is 3 radical 2

1 answer:

7 0

a square is made up of 2 congruent right triangles with the same leg length. we use the Pythagorean theorem to find the length of one of these legs. a^2+b^2=c^2, but we know that the legs are equal in length, so we have 2a^2=(3rad2)^2

2a^2=9*2

a^2=9

a=3

square is made up of 4 of these, so 4*3=12

the perimeter is 12

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Please answer this correctly

arlik [135]

Answer:

Step-by-step explanation:

405=9x9xj

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3 years ago

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romanna [79]

Answer:

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3 years ago

An artist used silver wire to make a square that has a perimeter of 40 inches. She then used copper wire to make the largest cir

Serhud [2]

Answer:

The artist used $8.6\ in$ more of silver wire

Step-by-step explanation:

see the attached figure to better understand the problem

step 1

we know that

The Perimeter of the square is equal to

$P=4a$

where

a is the length side of the square

$P=40\ in$

$40=4a$

$a=10\ in$

Each side of the square has a length of 10 in

step 2

Find the circumference of the circle

The diameter of the circle is equal to the length of the side of the square

The circumference is equal to

$C=\pi D$

we have

$D=10\ in$

substitute

$C=(3.14)(10)=31.4\ in$

step 3

Find the difference

$40\ in-31.4\ in=8.6\ in$

4 0

4 years ago

Calculeaza aria unu paralelogram cu latura 3 radical 2 cm si inaltimea 2cm

zloy xaker [14]

Answer:

Aria unui paralelogram $=6\sqrt{2}$

Step-by-step explanation:

Folosind formula:

Aria unui paralelogram = (baza x înălțimea)

= (3√2 x 2)

$=6\sqrt{2}$

Aria unui paralelogram $=6\sqrt{2}$

6 0

3 years ago

Please help will give correct answer brainliest

kodGreya [7K]

Answer:

Step-by-step explanation:

Let us begin with the AA Similarity definition. It states that if two angles of one triangle are congruent to two angles of another triangle, then the triangles are similar.

This means that we need:

An angle of one triangle that is congruent to an angle of the other triangle.
Another angle of one triangle that is congruent to another angle of the other triangle.

For this problem, it is unclear that there are more than one angles that are congruent to each other. We see that angle <DEF and <ABC are congruent, but the problem does not give any other angles. In another case, we must find one more to prove similarity by the AA similarity theorem.

6 0

4 years ago