Area of Rectangle
What is the formula to calculate the area of a rectangle/square?
A = bh
A = lw
What is the formula for the area of a parallelogram?
A = bh
What is the formula for the area of a triangle?
A = (bh)/2
What is the formula for finding the perimeter of a rectangle, square of parallelogram?
P = 2(l+w) or 2l + 2w or S1+S2+S3+S4
How do you find the perimeter of a shape with 3 sides?
P = S1+S2+S3
A rectangular table has a width of 2m and a length of 3m. What is the area of the table?
A = 6m2
A parallelogram has a length of 12cm and a height of 8cm. What is the area of the shape?
A = 96cm2
A triangle has a base of 23cm and a height of 32cm. What is the area of the triangle?
A square table has a length of 80cm. What is the perimeter of the table?
P = 320cm
An equilateral triangle has a side that is 8cm long. What is the perimeter?
P = 24cm
The classroom is 15m wide. The length is 10m more than the width. What is the area of the room?
A = 375m2
A parallelogram has a base of 110mm. The height is half of the base. What is the area of the shape?
A = 6050mm2
Why is the area of a triangle divided by two?
The area of a triangle is divided by two because if you put two triangles together you would get a square.
A parallelogram has an area of 36m2. The base is 9m. What is the perimeter of the parallelogram?
P = 26m
An isosceles triangle has a perimeter of 37cm and a base of 7cm. What is the length of the other 2 sides?
S1 and S2 are 15cm long.
A desk has an area of 2700cm2. The length of the desk is 45cm. What is the width of the desk?
W = 60cm
A parallelogram has a total area of 858cm2. The height of the parallelogram is 26cm. What is the base?
B = 33cm
A triangle has an area of 35m2. The base of the triangle is 10m. How tall is the triangle?
H = 7m
A square room has an area of 144m2. What is the perimeter?
P = 48m
A triangle has a perimeter of 155 cm. One side has a length of 55cm. Another side has a length of 27cm. What is the length of the third side?
S3= 73cm
The area of the gym is 3532 m2. The width of the gym is 56m. What is the length of the gym?
L = 72 m
The area of a parallelogram is 1407cm2. The base if 21cm. What is the height of the parallelogram?
A triangle has a base of 99mm. The height is 4 more than the base of the triangle. What is the area of the triangle?
A = 5098.5mm2
A rectangle has a perimeter of 76m. The width of the rectangle is 8m. What is the length?
L = 30m
Triangle one has a 3 equal side measurements of 8cm.
Triangle two has one side with a length of 10cm and two sides with a length of 7cm.
Which triangle has a bigger perimeter?
Neither. They have the same perimeter.