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Shtirlitz [24]
3 years ago
5

Find the area the figure is not drawn to scale 6.9 cm 4 cm

Mathematics
1 answer:
Grace [21]3 years ago
4 0
Please check attached file to see if you mean the same triangle. 

Basically, to find the area of a triangle, you are going to use the formula :
 A = b × h        where b is base, h is height.
          2

others also use the formula: <span> Area=1/2(bxh)</span>

Based on the figure, we have 6.9 cm (base) and 4 cm (height) as given.
Let us work out on the area of the said triangle.
A= <u>6.9cm × 4cm</u>
             2

  = <u>27.6cm</u>²<u>
</u>       2
A= 13.8 cm²


Hope this helps!
   

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emmainna [20.7K]
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Then collect like terms
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Given: Q = 7m + 3n, R = 11 - 2m, S = n + 5, and T = -m - 3n + 8. Simplify R - S + T
galben [10]

Q=7m+3n\\R=11-2m\\S=n+5\\T=-m-3n+8\\\\R-S+T=(11-2m)-(n+5)+(-m-3n+8)\\\\=11-2m-n-5-m-3n+8\\\\=(-2m-m)+(-n-3n)+(11-5+8)\\\\=\boxed{-3m-4n+14}

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