Answer:3.215
Step-by-step explanation:
False. Not all triangles are equilateral.
Let:
P - perimeter
l - length
w - width
We know:
P = 118 m
l = 2w - 7
<h3>Rectangle perimeter's formula: P = 2l + 2w</h3>
We replace the length with 2w - 7.
P = 2×(2w - 7) + 2w
118 = 4w - 14 + 2w
118 = 6w - 14
6w = 118 + 14
6w = 132
w = 22 meters
Answer:
-2m
Step-by-step explanation:
-6+4 = -2 or 4-6 = -2 so -2m
Data:
surface area=324 m²
lenght=5 m
width=12 m
SA=2(Iw+Ih+wh)
324 m²=2(5 m*12 m + 5 m h+12 m h)
324 m²=2(60 m²+17 m h)
60 m²+17 mh=324 m²/2
60 m²+17 mh=162 m²
17 mh=162 m²-60 m²
17 mh=102 m²
h=102 m²/17 m
h=6 m
Answer: the height is 6 m