Well a right triangle is made up of a 180 degree angle and take away 90 degrees because the right angle is already there so the answer is that PQR is a right triangle since the other two angles = 90 when added hope this helps i did alot of research:)
The answer is 43 hope this helps:)
Answer:
it is 7200 Liters
Step-by-step explanation:
Brainliest?
Answer:

Step-by-step explanation:
The total surface area of this triangular prism consists of three rectangles and two triangles. Adding the areas of each of these shapes allows us to find the total surface area of this 3D figure:
Area of both triangles:

Area of all three rectangles:

Therefore, the total surface area of this figure is:

-8-5b+7+5b
add +5b to -5b to get 0.
-8+7 = -1
Answer is -1.