Parts of a Triangle: Determine the size of the given angles

Classify a triangle by its sides Is it possible...?Using the median to calculate the perimeter Using the theorem: The median of a triangle divides it into two triangles of the same area Median in an isosceles triangle - properties Using parallel lines Identify the greater value Median in a right-angled triangle Using properties of the median Identifying the sides in a triangle using median and height Calculate Angles in Quadrilaterals True / false Identifying sides in a triangle Using angles in a triangle Identifying and defining elements Finding the size of angles in a triangle

Question 1

Find the size of the angle $\alpha$ .

Question 2

Find the size of the angle $\alpha$ .

Question 3

Find the size of the given angle.

Question 4

Find the size of the angle $\alpha$ .

Question 5

Find the size of the angle $∢\text{ACB}$ .

Examples with solutions for Parts of a Triangle: Determine the size of the given angles

Exercise #1

Find the size of the angle $\alpha$ .

Video Solution

Answer

70

Exercise #2

Find the size of the angle $\alpha$ .

Video Solution

Answer

65

Exercise #3

Find the size of the given angle.

Video Solution

Answer

180

Exercise #4

Find the size of the angle $\alpha$ .

Video Solution

Answer

112

Exercise #5

Find the size of the angle $∢\text{ACB}$ .

Video Solution

Answer

20