Perimeter is
the total length of the outside of a shape
Area is
the amount of space inside a 2D shape.
Volume is
C2 = a2+ ____
C2 = a2+b2
Mr Halmai's favourite sport is
basketball
Convert 800cm to m
To convert cm to m, divide the number by 100.
800/100 = 8m
The formula used to find the area of a triangle
1/2 * base * height
To find the volume of a 3D prism, multiply the area of the 2D shape by the _______ of the prism.
depth/height
What is the value of the hypotenuse in the below triangle?
The hypotenuse is the longest side of a right angled triangle and is always opposite the right angle.
Therefore, the value of the hypotenuse in this triangle is 110.
What fraction of the whole circle is this sector?
A circle is 360 degrees
This sector is 120 degrees
120/360 = 1/3
Therefore, this sector is 1/3 of the whole circle.
Convert 3140000 m2 to km2
To convert from m2 to km2, divide the number by 10002
3140000/10002 = 3.14 km2
A circle has a radius of 5m. Find the area of the circle correct to 2 decimal places.
Area = pi * r2
Area = pi *52
Area = 78.54m2
Find the volume of the following shape
V = Area * depth
V = length * base * height
V = 5 * 7 * 9
V = 315m2
Find the length of the missing side in the below triangle:
c2 = a2+b2
c2 = 42+32
*Missing step
c = 5cm
In what year did Mr Halmai graduate TVAC?
2019
Find the perimeter of the below shape
5+5+9+3+10+12= 44m
Find the area of this shape
A = 1/2 * 5 * (6+14)
A = 50cm2
Find the volume of the following shape.
V = Area * depth
V = 1/2 * base * height * depth
V = 1/2 * 3 * 4 * 8
V = 48cm2
Determine whether the following three numbers are pythagorean triples: 19, 180, 181
c2 = a2+b2
1812= 1802+192
32671 = 32671
LHS = RHS
Therefore, yes, 19, 180 and 181 are pythagorean triples.
The volume of the cylinder to the nearest whole number is:
V = Area of circle * height
V = pi * r2 * height
V = pi * 10 * 5
V = 157 cm3
If the perimeter of this quadrilateral is 17 cm the value of x must be:
17 = 3+6+2x
17 = 9+2x
-9 -9
8 = 2x
4 = x
Therefore, x = 4cm
Find the area of the below sector
A = (120/360) * pi * 42
A = 16.76 cm2
The capacity of a container that is a rectangular prism 50cm long, 20cm broad and 8cm deep is:
V = Area * depth
V = l * b * h
V = 50 * 20 * 8
V = 8000cm2
1L = 1000cm2
8000/1000 = 8L
Find the value of x in the below triangle correct to 2 decimal places:
b2= c2-a2
b2= 142-92
*Missing step
b = 10.72
Draw the 3D shape described in the situation below.
Bob is building a ramp to the top of a verandah. The verandah is 70cm off the ground. The slope from the top of the ramp to the ground is 3m. The depth of the ramp is 1m.