If the height of a computer screen is 7 in. & the width is 11 in. what is the length of the diagonal? Round to the nearest inch?
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- Engr. RonaldLv 73 months ago
Apply pythagorean theorem
c = √(a^2 + b^2)
c = √(7^2 + 11^2)
c = √(170) or 13 in answer//
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- RRLv 73 months ago
Use Pythagoras. The square on the hypotenuse = sum of squares on the other two sides.
In this case, the diagonal is the hypotenuse:
7^2 + 11^2 = h^2
49 + 121 = h^2
170 = h^2
h = 13 inches
- Bill-MLv 73 months ago
7 squared =49; 11 squared = 121;......49+121 = 170;....square root of 170 = 13.0384
- ?Lv 73 months ago
Use the Pythagorean theorem: A²+B² = C² where A and B represent the sides of a right triangle, and C represents the diagonal.
7² + 11² = C²
C² = 170
C = √170
C = 13.04
C ≈ 13 inches (rounded)............ANS
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13 not 12