Cartesian Plane
What would the new coordinates be for Point A if it was rotated 180 degrees?
Point A (4, 5)
New coordinates (-4, -5)
How do we identify the hypotenuse in a right angled triangle?
The hypotenuse is opposite the right angle.
Which French Person was the Cartesian Plane named after?
A. Jacques Crousseau Cartes
B. Renes Descartes
c. Carter Giroud
B. Renes Descartes
What is the circumference of a circle with a diameter of 10m.
pi x Diameter = circumference
10 x 3.14 = 31.4 meters
What would the new coordinates be for Point A and B if they were rotated 270 degrees.
Point A ( 7, 9 )
Point B ( 4 , 7 )
New Coordinates:
Point A (9, -7)
Point B (7, -4)
Solve for C
a = 6cm
b = 8cm
c = ?
c = 10cm
36cm + 64cm = c^2
100 = c^2
Square root of 100 is 10
c = 10cm
What is the area of a triangle that is 5cm tall and 7cm wide.
A = b x h / 2
= 7 x 5 / 2
=35/2
= 17.5 cm2
What would the new coordinates be for Point A and B if they were rotated 90 degrees, 180 degrees and 270 degrees?
Point A (4, 9)
Point B (6, 10)
90 degrees
Point A (-9, 4) Point B (-10, 6)
180 degrees
Point A (-4, -9) Point B (-6, -10)
270 degrees: Point A (9, -4) Point B (10, -6)
a = 40cm
b = ?
c = 70 cm
a^2 + b^2 = c^2
1600 + b^2 = 4900
b^2 = 4900 - 1600
b^2 = 3300
b= 57.5 cm (57.4456)
What is the area of a circle with a radius of 7m?
A = pi r 2
= 3.14 x 72
= 3.14 x 49
= 153.9m2
What quadrant is Point A in and where would it end up if it was rotated 270 degrees?
Point A (-3, - 7)
Point A is in quadrant 3 and would end up in quadrant 2 if it was rotated 270 degrees.
Solve for a
a = ?
b = 80 cm
c = 92 cm
a^2 + b^2 = c^2
a^2 + 80^2 = 92^2
a^2 + 6400cm = 8464cm
a^2 = 8464cm - 6400cm
a^2 = 2064 cm
a = 45.4 cm
What is the area of a circle that has a diameter of 18m?
diameter / 2 = radius
= 18/2
=9m
A = pi r2
A = 3.14 x 92
A = 3.14 x 81
= 254.3m2
What would the new coordinates be if they were rotated 180 degrees?
Points A (3, -2)
Point B (2, -5)
Point C (5, -6)
New coordinates after 180 degree rotation
Point A (-3, 2)
Point B (-2, 5)
Point C (-5, 6)
Two sides of a right angled triangle are 12cm and 32cm. What is the hypotenuse of the triangle?
There are 2 possible hypotenuses for this triangle. One being 32cm and one being 34.2cm.
Calculate the area of a circle that has a circumference of 12cm.
diameter = circumference / pi
= 12 / 3.14
= 3.8cm
r = diameter / 2 = 3.8cm / 2 = 1.9
A = pi r2
A = 3.14 x 1.92
= 3.14 x 3.6
= 11.3cm2