Angles and Shapes

Angles and Shapes

There are different ways to name angles

Such as acute, right, obtuse, straight, reflex and revolution

Multiple Choice

What type of angle is shown here?

• Acute

• Obtuse

• Reflex

• Right

Multiple Choice

Which angle type is pictured?

• Acute
• Right
• Obtuse
• Straight

Multiple Choice

Right, acute, or obtuse?

• Acute
• Right
• Obtuse

Multiple Choice

Identify the type of angle shown....

• Acute

• Obtuse

• Reflex

• Right Angle

Multiple Choice

Identify the type of angle shown....

• Acute

• Obtuse

• Reflex

• Right Angle

Multiple Choice

Identify the type of angle shown....

• Acute

• Obtuse

• Reflex

• Right Angle

The Sizes - write these down in your book if you are unsure

• Acute angles are greater than 0 but less than 90

• Right angles are 90

• Obtuse angles are greater than 90 but less than 180

• Straight angles are 180

• Reflex angles are greater than 180 but less than 360

• Revolution is 360

Multiple Select

Identify all the OBTUSE angles...

• 87^o

• 245^o

• 303^o

• 164^o

• 95^o

Multiple Choice

Define Straight

• Less than 90

• Exactly 90

• Greater than 90 and less than 180

• Exactly 180

Multiple Choice

Define Obtuse

• Less than 90
• Exactly 90
• Greater than 90 and less than 180
• Exactly 180

Multiple Select

Identify all the ACUTE angles...

• 37^o

• 135^o

• 23^o

• 4^o

• 175^o

Complete Ex 6A questions 2, 4 & 9

From your online textbook

Rules for angles in parallel lines - Watch the video explanation - copy the link below

https://tinyurl.com/bcxfj67s

This video explains answering problems if you would like more examples

https://tinyurl.com/55z225xb

Multiple Choice

Calculate the missing angle.

• 111º

• 69º

• 65º

• 115º

Multiple Choice

Calculate the missing angle.

• 63º

• 43º

• 127º

• 53º

Multiple Choice

Calculate the missing angle.

• 52º

• 128º

• 42º

• 122º

Multiple Choice

Calculate the missing angle.

• 125º

• 135º

• 55º

• 50º

Multiple Choice

Calculate the missing angle.

• 42º

• 138º

• 148º

• 32º

Multiple Choice

Calculate the missing angle.

• 132º

• 58º

• 48º

• 38º

Multiple Choice

The angles are the same because they are _____________?

• Corresponding Angles

• Alternate Angles

• Opposite Angles

• Co-Interior Angles

Multiple Choice

The angles are the same because they are _____________?

• Alternate Angles

• Corresponding Angles

• Co-Interior Angles

• Opposite Angles

Multiple Choice

Calculate the missing angle.

• 155º

• 35º

• 135º

• 145º

Multiple Choice

Calculate the missing angle.

• 110º

• 80º

• 70º

• 60º

Multiple Choice

These angles are the same because they are ______________?

• Opposite Angles

• Alternate Angles

• Co-Interior Angles

• Corresponding Angles

Multiple Choice

These angles add to 180^o because they are ______________?

• Co-Interior Angles

• Corresponding Angles

• Alternate Angles

• Opposite Angles

Multiple Choice

These angles are the same because they are ______________?

• Alternate Angles

• Corresponding Angles

• Opposite Angles

• Co-Interior Angles

Complete Exercise 6B question4 and 5 both domo

Quadrilaterals

Read through the quadrilaterals page in your textbook - examples for 6D

Complete the Table in Question 2 using the theory page and your quadrilateral family tree

Multiple Choice

What shape is this?

• Rectangle
• Kite
• Trapezoid
• Parallelogram

Multiple Choice

What shape is this?

• Kite
• Square
• Trapezoid
• Rhombus

Multiple Choice

What shape is this?

• Square
• Parallelogram
• Trapezoid
• Rhombus

Multiple Choice

Which two shapes have 4 equal sides?

• rectangles and rhombuses

• squares and kites

• squares and rhombuses

• kites and rectangles

Multiple Choice

Which quadrilateral has only one diagonal bisected by the other?

• kite

• parallelogram

• rhombus

• square

Multiple Choice

Which quadrilateral has equal diagonals?

• rectangle

• rhombus

• kite

• parallelogram

Multiple Choice

A parallelogram is ________ a quadrilateral

• Sometimes
• Always
• Never

Multiple Choice

A rectangle is ______ a square

• Sometimes
• Always
• Never

Multiple Choice

Which attribute does NOT describe a rhombus:

• Diagonals are perpendicular 
• Sides are parallel
• Diagonals are bisect
• Four right angles

Multiple Select

Which of these are properties of the diagonals of a rhombus?

• Diagonals bisect each other

• Diagonals bisect angles of the rhombus.

• Diagonals are congruent.

• Diagonals are perpendicular.

Multiple Select

Which of these are properties of the diagonals of a parallelogram?

• Diagonals bisect each other

• Diagonals bisect angles of the parallelogram.

• Diagonals are congruent.

• Diagonals are perpendicular.

Multiple Select

Which of these are properties of a rhombus?

• Consecutive angles are are supplementary.

• Opposite angles are congruent.

• All four angles are congruent.

• All four sides are congruent.

• Opposite sides are parallel.

Multiple Select

Which of these are properties of a rectangle?

• Opposite sides are parallel

• All 4 sides are congruent

• All 4 angles are congruent.

• Opposite sides are congruent.

• Consecutive angles are supplementary.

Multiple Select

Which of these are properties of a square?

• Opposite sides are congruent.

• All 4 angles are congruent

• All 4 sides are congruent

• Opposite sides are parallel

• Consecutive angles are supplementary

Multiple Select

Which of these are properties of a parallelogram?

• Both pairs of opposite sides are parallel

• Both pairs of opposite sides are congruent.

• Opposite angles are congruent.

• Consecutive angles are supplementary

• All 4 angles are congruent.

Multiple Choice

What shape is this? 

• Kite
• Parallelogram
• Rectangle 
• Trapezoid 

Multiple Choice

What shape is this? 

• Parallelogram 
• Rhombus 
• Rectangle 
• Trapezoid

Multiple Choice

What shape is this? 

• Square 
• Rectangle 
• Rhombus 
• Parallelogram 

Another important fact is that the interior angles of a quadrilateral add to 360 degrees - write this down in your book

Press Pause and complete Ex 6D questions 3,4 and 6

Open Ended

How confident are you feeling with this topic?