Term 3 math revision Flashcards
Term 3
Angles
What type of angle is larger than 0 degrees & shorter than 90
Theres
Acute angle
Identify the Angle
What type of angle is formed when the hands of a clock show 3 o’clock?
Acute, right or obtuse angle
Right angle
Measure the Angle:
If an angle measures 120 degrees, what type of angle is it? Explain why.
Obtuse,
Less 90 = Acute Angle
90 deggres = Right Angle
90+ to 179 = Obtuse
180 = Straight
Calculate the Angle
If two angles on a straight line add up to 180 degrees and one of them is 45 degrees, what is the measure of the other angle?
180 - 45 =
135 because;
80 - 45 = 35
100 + 35 = 135
If Jane lays down flat on the ground, what angle could you see
Its might not be these; Reflex or obtuse
A straight Angle
180 degrees
Analog to Military Digital
If the time on a digital clock is 2:45 PM, what is the time in Military format?
14:45
12hr + 2hr+ 45 =
DIgital to Analog
Convert the digital time 17:30 to analog time. What time is it?
Don’t forget this one small thing
5:30 pm
PM
Elapsed time
If a movie starts at 6:15 PM and ends at 8:00 PM, how long is the movie?
1 hr and 45m
If Jessi has to go work at 17:52 and she has a 8hr shift what time in analog will her work end?
1:52 Am in analog
Comparing Mass
If a bag of flour weighs 2 kg and a bag of sugar weighs 1.5 kg, which one is heavier and by how much?
Answer: The bag of flour is heavier by 0.5 kg.
If a jug can hold 1.5 liters of water, how many 250 ml cups can be filled from the jug?
6 cups (since 1.5 liters = 1500 ml, and 1500 ml ÷ 250 ml = 6).
Converting Units
Convert 3.5 kilograms to grams.
3.5 kilograms is equal to 3500 grams (since 1 kg = 1000 grams).
Conversion Challenge
If the temperature in Brisbane is 30°C and it drops by 15°C overnight, what is the new temperature? How much would the temperature need to increase to return to 30°C?
15°C change
A recipe requires you to preheat the oven to 180°C. After 10 minutes, the oven’s temperature is 120°C. How much more does the temperature need to increase to reach the required 180°C?
60°C more!
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On Monday, the temperature is 25°C. On Tuesday, it is 5°C higher than Monday. On Wednesday, it is 3°C lower than Tuesday. What is the temperature on Wednesday?
27°C