Pythagoras 2
How do you rate your understanding of Pythagoras Theorem so far?
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Lesson duration is: 45 minItems in this lesson
How do you rate your understanding of Pythagoras Theorem so far?
Slide 1 - Poll
Which of these would you use to calculate the unknown side?
A
KL2+KM2=LM2
B
LM2+KM2=KL2
C
LM2+KL2=KM2
Slide 2 - Quiz
What do we call LM in English?
A
hipotenuse
B
hypotenuse
C
hypotenusa
D
hijpotenuus
Slide 3 - Quiz
What is the length of LM?
A
√27
B
√32
C
√50
D
√45
Slide 4 - Quiz
Slide 5 - Slide
A support cable (steunkabel) for a radio mast must be replaced. The mast is 96 ft tall. The cable is 105 ft long. How far from the base of the mast can the cable be attached to the ground? (to the nearest foot)
Draw a sketch for this problem and take a picture of it.
Draw a sketch for this problem and take a picture of it.
Slide 6 - Open question
Slide 7 - Slide
An anchor line (support cable) for a radio mast must be replaced. The mast is 96 ft tall. The cable is 105 ft long. How far from the base of the mast can the cable be attached to the ground? (to the nearest foot)
A
43
B
61
C
142
D
42.5
Slide 8 - Quiz
Jack searches for treasure using his GPS. It tells him that he is 40 m away from the treasure. He walks directly west 24 m. His GPS now tells him that he must now go directly south to reach the treasure. How far south must he go?
Draw a sketch and use it to calculate the answer.
Draw a sketch and use it to calculate the answer.
Slide 9 - Open question
Slide 10 - Slide
What is the height of the trapezium? (to 1 d.p.)
A
7.2 cm
B
8.4 cm
C
8.43 cm
D
12,0 cm
Slide 11 - Quiz
What is the missing length? (to 1 decimal place)
A
10.9 cm
B
12.2 cm
C
13.0 cm
D
15.7 cm
Slide 12 - Quiz
Slide 13 - Slide
Can you suggest how we could find the length of the dotted line?
Slide 14 - Open question
How do you rate your understanding of Pythagoras Theorem so far?
