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Problems Involving Radicals

Authored by Lady Reyes

Mathematics

9th - 12th Grade

Used 56+ times

Problems Involving Radicals
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10 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Which equation represent the problem: Find the number such that twice its square root is 14? 

 2\sqrt{x}\ =\ 14 

  \sqrt{2x}\ =\ 14 

   2\ +\sqrt{x}\ =\ 14 

 \sqrt{x\ +\ 2}\ =\ 14   

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Find the number such that twice its square root is 14.

7

28

49

14

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Which equation represents the problem below?
"The shorter leg of a right triangle is 9 cm and the longer leg is 12 cm. How long is the hypotenuse?"   

  x^2\ =\ 12^2\ -\ 9^2 

 x^2\ +\ 12^2\ =\ 9^2 

 x^2\ =\ 9^2\ +\ 12^2  

  x\ =\ 12^2\ +\ 9^2  

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

The shorter leg of a right triangle is 9 cm and the longer leg is 12 cm. How long is the hypotenuse?

 3\sqrt{7}  cm

15 cm

11 cm

 \sqrt{63} cm

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What  formula can be used to solve the problem: "What is the length of the side of a square whose diagonal is 18cm?"

 A\ =\ s^2  

   A\ =\pi r^2  

   c^2\ =\ a^2\ +\ b^2 

   A=\ \frac{1}{2}bh 

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 Which equation represent the problem: "What is the length of the side of a square whose diagonal is 16cm?"

  16\ =x^2 

    16 = 3.14x216\ =\ 3.14x^2  

    16^2\ =\ x^2\ +\ x^2  

   16 = 12x216\ =\ \frac{1}{2}x^2 

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 What is the length of the side of a square whose diagonal is 16cm?

  8 cm8\ cm 

    4 cm4\ cm  

    642 cm64\sqrt{2}\ cm  

    8\sqrt{2}\ cm 

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