Answer:
x is 23
Step-by-step explanation:
cause it is an 180 angle so 180-93=87
87 -18 =69
3x=69
x=23
All faces are rectangles.
Each two opposite faces are congruent and have the same area.
Two faces measure 20 cm by 7 cm.
Two faces measure 20 cm by 15 cm.
Two faces measure 15 cm by 7 cm.
total surface area = 2 * 20 cm * 7 cm + 2 * 20 cm * 15 cm + 2 * 15 cm * 7 cm
total surface area = 280 cm^2 + 600 cm^2 + 210 cm^2
total surface area = 1090 cm^2
Answer:
okay
Step-by-step explanation:
<em>Simplify 11(12+u)</em>
<em> </em>
To simplify this expression, Multiply 11 (the number outside the parentheses) by every term
inside the parentheses, as follows:-
Simplifying,
Please note that we cannot simplify this any further, because 
<h3>Good luck with your studies.</h3>
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