Measuring Angles
What is the answer to 1a.?
Use a protractor to find the measure of the angle formed by the ladder and the grass?
70 degrees
2b: Find the measurement of the interior angle for the rectangle.
90 degrees
What is the answer to 1b?
What is the angle formed by the ladder and the line under Bill's feel?
70 degrees
2b: Find the measurement of the interior angle for the triangle
60 degrees
2b: How many numbers of angles do the triangle, rectangle, pentagon, and hexagon have?
Triangle: 3
Rectangle: 4
Pentagon:5
Hexagon: 6
What is the answer to 2a?
Find the measure of the missing angle and explain your answer.
360-185-85-70 = 20 degrees
2b: Find the sum (+) of the interior angles for the triangle, rectangle, pentagon, and hexagon.
Triangle: 180 degrees
Rectangle: 360 degrees
Pentagon: 540 degrees
Hexagon: 720 degrees
What is the answer to 3a and 3b?
Calculate the measure of angle ACB and angle DCA.
Angle ACB = 180-32-90 = 58 degrees
Angle DCA = 90 + 32 = 122 degrees
What is the answer to 2c?
Does the sum of all the interior angles of any pentagon always the same, even if there is an obtuse angle? Explain in a full sentence!
Yes, the sum of the interior angles of all pentagons will be the same. 90+90+45+45+270 = 540 degrees
What is the answer to 3c?
As if he’s trying to teach his grandkids to put out fires, Grandpa Tom tells them to make sure ∠ACB is always acute. Therefore, ∠DCA must always be between which to angle measures?
∠DCA must always be between 90 degrees and 179 degrees.