Answer:
B- 3 by 7 by 9 is the only right answer.
Step-by-step explanation:
What is a triangle?
A triangle is a polygon with three edges and three vertices. It is one of the basic shapes in geometry. A triangle with vertices A, B, and C is denoted.
Basic rule:
A triangle must be tri-sided, means it must have three sides which is only possible if the sum of the smaller two sides is greater than the third side. Otherwise, a triangle is not physically possible.
A- 2+3 = 5 hence not a triangle.
B- 3+7 > 9 hence a triangle.
C- 4+5 < 9.5 hence not a triangle.
D- 5+6 < 12 hence not a triangle.
120 ÷ 4= 30 so 30 pages a day
30x4=120
30x5=150 sorry my answer was wrong before
this is correct hope it helps
Given :
- Area of the trapezium is 140 cm².
- Its height is 10 cm.
- One of the parallel side is 16 cm.
To Find :
Solution :
- Let the other parallel side be x
We know that,

Now, Substituting the given values in the formula :







Therefore,
- The other parallel side of the trapezium is 12 cm.
Answer:
9.825 rounded to nearest 5-9.82500
10-9.8
100-9.83
1,000-9.825
Step-by-step explanation:
You can also look up a rounding calculator if you need more help :)