Answer
Check Explanation for the solutions.
Step-by-step explanation
Before we answer this, we will define the types of angles that exist.
Acute angle refers to angles that are less than 90 degrees.
Right angle refers to an angle that is exactly equal to 90 degrees.
Obtuse angle refers to angle that is more than 90 degrees but less than 180 degrees.
Straight angle refers to an angle that is equal to 180 degrees.
Question 1
That angle is a right angle.
Hence, the measure of that angle is 90°
Question 2
This angle is evidently less than 90°.
On measuring this, we see that it is about 45°.
Question 3
Question 4
Question 5
Question 6
The angle is more than 90° and less than 180°, hence, this angle is an obtuse angle.
Question 7
To use a protractor to measure an angle, we will align the center of the protractor with the starting point of the line, then, we will make sure the straight line of the protractor aligns with one of the straight lines that form the angle.
We will now match the other straight line that forms the angle with one of the angles of the protractor. Whichever angle this second striaght line aligns with is the angle being measured.
Hope this Helps!!!