Soh Cah Toa
Sine of the angle = opposite side over the hypotenuse
sin(42°) = 6.5/h
rearrange, solve for h
h = 6.5/sin(42°)
h = 9.7 cm
For the other triangle, the angle is unknown. I'd split it into two right triangles; down angle x since it is an isosceles it will be bisected into two equivalent triangles.
The hypotenuse we just found is now split in half. 9.7/2 = 4.9 base of the new smaller right triangle.
The new hypotenuse of the smaller triangle is 7.4 cm
Then you have..
sin(x/2) = 4.9/7.4
sin(x/2) = 0.67
use inverse sine function
arcSin(0.67) = x/2
41 = x/2
82° = x
There are many ways to solve this problem. This is just what I thought of first using trig.
Answer: simplest reason is that Infinity is not a number, it is an idea.
So 1∞ is a bit like saying 1beauty or 1tall.
Maybe we could say that 1∞= 0, ... but that is a problem too, because if we divide 1 into infinite pieces and they end up 0 each, what happened to the 1?
In fact 1∞ is known to be undefined.
But We Can Approach It!
So instead of trying to work it out for infinity (because we can't get a sensible answer), let's try larger and larger values of x:
graph 1/x
x 1x
1 1.00000
2 0.50000
4 0.25000
10 0.10000
100 0.01000
1,000 0.00100
10,000 0.00010
Now we can see that as x gets larger, 1x tends towards 0
We are now faced with an interesting situation:
Step-by-step explanation:
<em>Answer</em><em>:</em>
the surface area of the rectangular pyramid below is 300 units2
The answer is 6.21 hope I helped
Answer:
4.50
Step-by-step explanation:
2.25 times (100/(sale percentage)), so 2.25 x 2