This question is just giving you a fancy way of finding the surface area.
Surface area is 2(L)(w) +2(L)(h)+2(h)(w)
Plug into the equation
2(6)(8)+2(6)(18)+2(18)(8)
=96+216+288
=600
Hey there,
4 x h = 4h
4h - 10
Hope this helps :))
~Top
Answer:
hey lol
Step-by-step explanation:
Given:
Angle A = 18.6°
Angle B = 93°
Length of side AB = 646 meters
To find:
the distance across the river, distance between BC
Steps:
Since we know the measure of 2 angles of a triangle we can find the measure of the third angle.
18.6° + 93° + ∠C = 180°
111.6° + ∠C = 180°
∠C = 180° - 111.6°
∠C = 68.4°
Therefore the measure of angle C is 68.4°.
now we can use the law of Sines,


![BC[sin(68.4)] = 646 [sin(18.6)]](https://tex.z-dn.net/?f=BC%5Bsin%2868.4%29%5D%20%3D%20646%20%5Bsin%2818.6%29%5D)



meters
Therefore, the distance across the river is 222 meters.
Happy to help :)
If anyone need more help, feel free to ask