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elena-s [515]
2 years ago
5

Help

Mathematics
2 answers:
Crank2 years ago
8 0
Area of triangle is base x height over 2
20 x 7 = 140
140/2 = 70
area of each triangle is 70m2
add the areas together to get the total area
70 + 70 = 140
total area is 140m2
GrogVix [38]2 years ago
3 0

<u>Answer:</u>

<u />

<u>20 m²</u>

<u>21 m²</u>

<u>less than</u>

<u>Step-by-step explanation:</u>

<u />

<u>Trapezoid</u>

<u />

<u>The trapezoid has been broken into two triangles and a rectangle. The two triangles both have the same dimensions, so both have the area ...</u>

<u />

<u>  A = (1/2)bh = (1/2)(2 m)(5 m) = 5 m²</u>

<u />

<u>The rectangle has area ...</u>

<u />

<u>  A = bh = (2 m)(5 m) = 10 m²</u>

<u />

<u>So, the total area of the trapezoid is ...</u>

<u />

<u>  trapezoid area = 5 m² +10 m² +5 m²</u>

<u />

<u>  trapezoid area = 20 m²</u>

<u />

<u>__</u>

<u />

<u>Kite</u>

<u />

<u>The kite has been broken into two triangles, so the area of each of them is ...</u>

<u />

<u>  A = (1/2)bh</u>

<u />

<u>  A = (1/2)(7 m)(3 m) = (21/2) m²</u>

<u />

<u>Then the area of the two halves of the kite will be ...</u>

<u />

<u>  kite area = 2 × (21/2 m²)</u>

<u />

<u>  kite area = 21 m²</u>

<u />

<u>__</u>

<u />

<u>The area of the trapezoid is 1 m² less than the area of the kite.</u>

<u />

<u>hope this helps!! ≡ω≡</u>

<u />

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