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3 years ago

Im horrible at math

Mathematics

2 answers:

vova2212 [387]3 years ago

5 0

Answer:

1. False, it has 2 pairs of 2 congruent sides

2. True, a rhombus has 2 pairs of 2 congruent sides

3. False, a square has 4 same-size sides, a rectangle has 2 pairs of them

4. True, a rhombus has 4 sides

5. True, a rectangle has 2 pairs of parallel sides

6. Rhombus, square, rectangle, and parallelogram , NOT trapezoid

7. Square, they have 4 equal sides and 4 right angles

8. Rectangle, square.

9. Rectangle, rhombus, square

10. Trapezoid

jonny [76]3 years ago

4 0

1-True
2-True
3-False
4-True
5-True
6- Rhombus, parallelogram
7-square, rhombus
8-rectangle, square, parallelogram
9-rhombus, square
10-trapezoid,rhombus

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$s^{2}= \frac{1}{n-1} ((0,6.x)^2+2(0,7-x)^2+(0.3-x)^2+2(0.4-x)^2+(0.5-x)^2+(0.2-x)^2)\\\ \frac{1}{7}*0,235 = 0,0336 \\\\ s= 0183$

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Step-by-step explanation:

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