The dimensions are in inches. What is the area of the shape shown, in square centimetres?
- 1000
- 1130
- 1264
Explanation from PART66Online
Split the section into three rectangles. Top flange: 12 x 3 = 36 sq in. Bottom flange: 20 x 5 = 100 sq in. The web's height is the overall 28 in less both flanges, 28 - 3 - 5 = 20 in, so the web is 20 x 3 = 60 sq in. Total: 36 + 100 + 60 = 196 sq in. One square inch is 2.54 x 2.54 = 6.4516 square centimetres, so the area is 196 x 6.4516 = about 1264 square centimetres.
A
aziz asked · 24 Jun 2012
In answer unit is not given here
Community Comments (3)
P
PART66Online
24 Jun 2012
Hello aziz.
Units is not important in that questions because only one answer is possible.
Units is not important in that questions because only one answer is possible.
B
basim_007
24 Jun 2012
her all the units are given in inches so the area in inches is 196inches square. Now to convert inches square to centimeter square we have to multiply 196 from 2.54 twice as its the area (1 inch= 2.54 cm). So by multiplying 196 x 2.54 x 2.54 = 1264.5 so this value is near to 1225. so thats the answer
P
PART66Online
25 Jun 2012
basim is absolutely right, but I think it is better to change 1225 to 1264
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