The 3rd answer, is correct.
Answer:
Step-by-step explanation:
A=h(b+b) divided by 2-how to
A=60(8+12) divided by 2- with numbers
A=600 meters squared-answer
Answer:
To do this I am pretty sure your going to have to do some hard calculations.
<u><em>Lets go deeper</em></u>
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so because it is a rectangle every angle is a right angle according to the property of a rectangle.
A right angle is 90 degress
So 8x+18=90
90-18=72
8x=72
72/8=9
x=9
Feel free to do brainlest if correct