The statement that must be true about square WXYZ are as follows;
- WX ≅ XY
- WX ≅ YZ
- ∠W is a right angle.
<h3>Properties of a Square.</h3>
- All sides are equal to each other.
- Opposite sides are parallel to each other.
- All the angles are right angle.
- The diagonals bisect each other and are perpendicular.
Therefore, the statement that must be true about square WXYZ are as follows;
- WX ≅ XY
- WX ≅ YZ
- ∠W is a right angle.
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Answer:
Step-by-step explanation:
Janet can make:
4/5 of a necklace in 20min
2(4/5)=8/5 ............in 40 min
3(4/5)=12/5 ............in 60 min( one hour)
12/5=2 2/5 necklaces in one hour
or 2.4n in one hour
Answer:
Combination
Step-by-step explanation:
Here by 10C7 we actually mean, 
And the formula for evaluating mCn is
Therefore
10C7 =
Where m! is called m factorial and can be evaluated as
m!= m*(m-1)*(m-2)*(m-3)*.......3*2*1
Hence
10!= 10*9*8......*3*2*1
7!= 7*8*6.....3*2*1
3!=3*2*1
With these we can evaluate
10C7
Hence the answer is D
The answer to this will be 8
