Answer:
wait wait- hold on, explain??
Step-by-step explanation:
Answer:
Area of equilateral triangle = 81√3 cm²
Step-by-step explanation:
Given:
Perimeter of an equilateral triangle = 54 cm
Find:
Area of equilateral triangle
Computation:
Perimeter of an equilateral triangle = 3 x Side
54 = 3 x Side
Side of equilateral triangle = 54 / 3
Side of equilateral triangle = 18 cm
Area of equilateral triangle = [√3/4]side²
Area of equilateral triangle = [√3/4][18]²
Area of equilateral triangle = [√3/4][324]
Area of equilateral triangle = [√3][81]
Area of equilateral triangle = 81√3 cm²
Answer:
Option C
Step-by-step explanation:
Exteriore angle property: Exterior angle equals the sum of opposite interior angles.
∠I = 77° + 56°
= 133°
Let's use some examples. So what can you make with 16? You can make 1 and 15, 2 and 14, etc.
How about trying 1 and 15 first?
1*15 = 15
What about 2 and 14, 3 and 13, and 4 and 12?
2*14 = 28
3*13 = 39
4*12 = 48.
Now we notice a pattern-- the numbers keep getting bigger, right? So the closer you get to the middle, the bigger the area will get. So if we divide 16 by 2, we get 8. Let's try 8 and 8.
8*8 = 64
That's larger than 48! Now let's try a couple more to make sure.
9*7 = 63
10*6 = 60
11*5 = 55
Next time, you'll know that with one of these problems, the biggest area would be the two numbers closest to each other you can get. Hope this helps! :)
Sine wave with amplitude 0.25
Period is 4/3
h(t) = 0.25Sin((2Pi/4/3)t) = 0.25Sin((3Pi/2)t)