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Alla [95]
3 years ago
15

Please help "What else must Julie do to prove ABCD is a square?"

Mathematics
2 answers:
elena55 [62]3 years ago
4 0
It is the first one because it goes down showing straight across (parallel) and straight across horizontal. It shows horizontal and parallel sides, which shows that it has 4 sides. It is a Quadrilateral, therefore the first one. It forms a square
anzhelika [568]3 years ago
4 0

Answer:

The correct option is the first one  because it goes down showing straight across (parallel) and straight across horizontal. It shows horizontal and parallel sides, which shows that it has 4 sides. It is a Quadrilateral, therefore the first one forms a square.

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What's 2+2? I'm in 8th can't figure it out
Dmitriy789 [7]
It's 4 and u should know that by now.
8 0
3 years ago
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What is the area of the logo?​
Ludmilka [50]

Answer:

the \: area \: of \: the \: logo \: is \:  {91cm}^{2}

Step-by-step explanation:

To determine the area of the logo you have to calculate the area of the triangle and the square that comform it and then add the four areas.

Area of the square.

To calculate the area of the square you have to calculate the square of one of its sides, following the formula:

a =  {a}^{2}

Where "a" is the length of one of its side.

The side length of the square is a=7cm, so its area will be:

asquare =  {7}^{2}  \\ asquare =  {49cm}^{2}

Area of the triangles.

The three triangles are equal, they have a base equal to the side of the square, i.e. with a length of 7cm, and their height is h=4cm.

To calculate the area of one triangle, you have to multiply its base by its height and divide by 2, following the formula:

a =  \frac{b.h}{2}  \\  a =  \frac{7.4}{2}  \\ a =  \frac{28}{2}  \\ a =  {14cm}^{2}

The area calculated the correspond to one triangle, since all triangles are congruent, you have to multiply the said area by 3 to determine the area of three figures:

atriangles = 3a \\ atriangles =  {42cm}^{2}

Now that the area of all shape are calculated, you have to add them to determine the area of the logo:

alogo = asquare + atriangle \\ alogo = 49 + 42 \\ alogo =  {91cm}^{2}

4 0
3 years ago
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Need help ASAP will vote brainliest
xeze [42]

Answer:

C

Step-by-step explanation:

7 0
3 years ago
There are 400 students in a school. Fifty five percent are girls. How many boys are there?
ki77a [65]
1) 55% is girls, then 
100-55=45% is boys.

2) 45%=0.45                                     or  2) 400 ----100%
3)400*0.45= 180 boys                                 x -----45%      x=400*45/100=180 boys

Answer is 180 boys.
5 0
3 years ago
Write into expression take away 3 from x
Savatey [412]

The expression will be x-3.

5 0
2 years ago
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