D/2 + c/3
10/2 + 6/3
5+6/3
=5+2
=7
Answer:
-24
Step-by-step explanation:
There is 2 ways to solve this type of question.
Method 1
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Formula
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a² + b² = c²
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Apply the formula
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(7√2)² + (7√2)² = c²
c² = 98 + 98
c² = 196
c = √196
c = 14
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Ans: The diagonal length is 14cm
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Method 2
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Identify the triangle
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This is a special triangle
45° - 45° - 90°
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Property of the Angles
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x - x - x√2
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Find hypotenuse
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Given that the non-hypotenuse is 7√2
Hypotenuse = (7√2)(√2)
Hypotenuse = 7 x 2
Hypotenuse = = 14cm
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Ans: The diagonal length is 14cm
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Jim goes to the shop and sees that the T-shirts are only $5.75 each and so wishes to buy 3 of them.
Expressed as a fraction $5.75 = $5 3/4
How much does he have to pay?
The answer is $17.25 or 17 1/4
