Answer:
The building is 16 m tall.
Step-by-step explanation:
x/2 = 80/10
10x=160
10x/10 = 160/10
x=16
this is a ratio question. The answer is 16 m
The persons height to shadow length ratio is 2 : 10
We want to know what the height of the building is when the shadows length is 80.
Let H represent height:
Persons ratio:
2 : 10
Buildings ratio:
H : 80
In other words for every 2 meters height a 10 m shadow is casted so we want to know how many of this ratio can fit into the building:
Let’s find the equivalent ratio:
80/10=8
That means 8 of the persons ratio makes up the building. Let’s find the height of building by 2*8=16.
therefore the building is 16m tall.
12
Given
with reference angle 45°
hypotenuse (h) = x
perpendicular (p) = 6√2
Now
sin 45° = p / h
1 / √2 = 6√2 / x
Cross multiply ✖
6√2 * √2 = x
x = 6 * 2
x = 12
67.5
4b + 7 + b
5b + 7 is the simplest version.
(3,4)
