<h3>Surface area of rectangular prism is 220 square units</h3><h3>Volume of rectangular prism is 200 cubic units</h3>
<em><u>Solution:</u></em>
<em><u>The surface area of rectangular prism is given as:</u></em>
A = 2(wl + hl + hw)
Where,
l is the length
w is the width
h is the height
From given,
l = 10 units
w = 4 units
h = 5 units
<em><u>Substituting the values we get,</u></em>
A = 2(40 + 50 + 20)
A = 2(110)
A = 220
Thus surface area of rectangular prism is 220 square units
<h3><u>Volume of rectangular prism</u></h3>
Thus volume of rectangular prism is 200 cubic units
The top one should be 14x - 2. Otherwise, everything else looks correct.
Ok start off by finding the base first and the equation of finding the area of the square is A=bh
A=11 x 11= 121 cm^2
Next find the area of one triangle and the equation is A=1/2bh
A=1/2(11)(10)
A=55 cm^2
Multiply the area of one triangle by 4 since there are four triangles and it should equal to 220 cm^2. You then add this to the base and the final answer should be 341 cm^2.
I hope this helps
Answer:
b
Step-by-step explanation:
Thickness of the plate before polishing = 2.342
Thickness of the plate after polishing. = 2.087
How much was removed = 2.342- 2.087 = 0.255
Hence , the answer 0.255 which is option B
