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10-07-2020
Mathematics

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The area of the triangle ABD is 56cm2. Work out the length of CD

The area of the triangle ABD is 56cm2 Work out the length of CD class=

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KurdishPotato KurdishPotato

10-07-2020

Answer:

8.2

Step-by-step explanation:

Area of triangle is calculated by multiplying height to the base and that divided by two

20 × h ÷ 2 = 56^2

h = 5.6

The square length of CD is equal to sum of square length of height and base

6^2 + 5.6^2 = CD^2

CD = 8.2

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