56871/89= 639.
Do you not get access to a calculator?
We need to find the other base also in order for us to find out what the area of this is.
Answer:
360 cm^2.
Step-by-step explanation:
Area of the base = 10*10 = 100 cm^2.
We find the slant height of the sides using Pythagoras:
h = sqrt ( 12^2 + 5^2)
h = sqrt 169
h = 13.
Area of the triangular sides = 4 * 1/2 * 10* 13
= 260 cm^2
So the total surface area = 100 + 260
= 360 cm^2.
Answer: 3.45
Step-by-step explanation:
The equivalent expression of 
is 
<h3>How to determine the
equivalent expression?</h3>
The complete question is in the attached image
The expression is given as:
Subtract 11 from both sides of the equation
This gives
Hence, the equivalent expression of is
Read more about equivalent expression at:
brainly.com/question/4344214
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