Answer:
Right angle triangle
Step-by-step explanation:
- Given triangle is right angle triangle
- It is a type of triangle that has one of it's angles equal to 90 degrees.
- The other two angle sum up to 90 degrees.
- Here AC side is perpendicular and the AB side is base of the triangle.
- And the third side that is called CB which longest side of all three sides that is called hypotenuse.
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Answer: 
Step-by-step explanation:
The area of a rectangle can be calculated with the formula:

l: the length of the rectangle.
w: the width of the rectangle.
The area of the remaning wall after the mural has been painted, will be the difference of the area of the wall and the area of the mural.
Knowing that the dimensions of the wall are
by
, its area is:

As they are planning that the dimensions of the mural be
by
, its area is:

Then the area of the remaining wall after the mural has been painted is:

Answer:
w = 7 7/8
Step-by-step explanation:
w + 1/8 = 8
First, subtract 1/8 from both sides of the equation
w + 1/8 = 8
- 1/8 - 1/8
w = 7 7/8
It would be: 11 * 90/100
= 11 * 0.90 = 9.9
So, your final answer is 9.9
Hope this helps!