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Internal angles of an octagon: ACT Math Practice Question

July 19, 2021 Leave a Comment

 

Try this ACT math practice question on the internal angles of an octagon.

In a regular octagon, all $8$ interior angles are congruent. What is the measure of each interior angle of a regular octagon?

  1. $\quad 22.5^{\circ}$
  2. $\quad 45^{\circ}$
  3. $\quad 120^{\circ}$
  4. $\quad 135^{\circ}$
  5. $\quad 150^{\circ}$

Choice D


Video explanation

Filed Under: ACT Practice Questions

Logarithms: ACT Math Practice Question

July 13, 2021 Leave a Comment

 

Try this ACT math practice question on manipulating logarithm expressions.

What value of $x$ satisfies the equation below
$$\log_{3} 36 \; – \log_{3} 4 = \log_{4} x$$

  1. $\quad 3$
  2. $\quad 16$
  3. $\quad 32$
  4. $\quad 72$
  5. $\quad 144$

Choice B


Video explanation

Filed Under: ACT Practice Questions

2021 June ACT Form D06: Video Explanations

June 30, 2021 Leave a Comment

 
Here is a link to the playlist of video explanations to all of the math questions in the 2021 June ACT (Form D06) Test.

Filed Under: Official ACT Tests

2021 April ACT Form Z04: Video Explanations

May 17, 2021 1 Comment

 
Here is a link to the playlist of video explanations to all of the math questions in the 2021 April ACT (Form Z04) Test. The access to this playlist is for subscribers only.

Filed Under: Official ACT Tests

2021 April ACT Form D05: Video Explanations

May 14, 2021 1 Comment

 
Here is a link to the playlist of video explanations to all of the math questions in the 2021 April ACT (Form D05) Test.

Filed Under: Official ACT Tests

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