SLIDE 1
Angles & Triangles
“What type of angle is this? What do you estimate the size to be?”
straight angle exactly 180°
Angles & Triangles What type of angle is this? What do you - - PowerPoint PPT Presentation
Angles & Triangles What type of angle is this? What do you - - PowerPoint PPT Presentation
Angles & Triangles What type of angle is this? What do you estimate the size to be? straight angle exactly 180 This is a 360 protractor. You can use the letter placed around the protractor to write secret codes. What letter is at
SLIDE 2
SLIDE 3
This is a 360° protractor. You can use the letter placed around the protractor to write secret codes. What letter is at clockwise 150° ? What letter is at anticlockwise 250° ? What is the angle from 0° to H clockwise ?
L i
Obtuse se Angel
SLIDE 4
whether the total angle on the triangle is 180 °?
Total angles in triangle equal with straight angle
SLIDE 5
By Sides we can sub classify triangles in: By Angles we can classify them by:
- Equiangular
- Acute
Then, we can combine both classifications and get some other results including acute isosceles triangle, acute scalene, right scalene and so on Type of Triangles
- Right
- Obtuse
SLIDE 6
SLIDE 7
Right-Angled Triangles
Right-Angled Triangles can be either Isosce les or scalene triangles
SLIDE 8 .
Angels & Triangles
Now you must complete the question in your learners book on page 109 number 1 page 111 number 4 page 112 number 1 and 2
SLIDE 9
Thank You!
“Bila kau tak tahan lelahnya belajar, maka kau harus tahan menanggung perihnya kebodohan” — Imam Syafi’i