Answer:

Step-by-step explanation:
The total surface area can be calculated using the formula

From the diagram

We plug in these values to get;
![S.A=2[5(5)+5(10)+5(10)]](https://tex.z-dn.net/?f=S.A%3D2%5B5%285%29%2B5%2810%29%2B5%2810%29%5D)
![S.A=2[25+50+50]](https://tex.z-dn.net/?f=S.A%3D2%5B25%2B50%2B50%5D)


Answer:
<em> i got -380</em>
Step-by-step explanation:
sorry if not helpful
Answer:
30 cm
Step-by-step explanation:
Step 1: The surface area of a cube = 6a^2, where "a" is the side of the cube.
Step 2: We are given surface area of a cube = 5400.
Step 3: Now plug in the surface area of the cube = 5400 and simplify.
5400 = 6a^2
a^2 = 5400/6
a^2 = 900
Now take square root on both sides, we get
a = √900
a= 30 cm
Therefore, the side of the cube is 30 cm.
Thank you.
Answer:
44
Step-by-step explanation:
ΔTRS ≅ ΔTRQ
TS = TQ
2x + 8 = 40
x = 16
The same situation
SV = QV
3 * 16 - 4 = 44
Point C, since pi=around 3.14
Hope that helps :)