Area and Perimeter Flashcards
A rectangle has length of y and height of 5cm
Area of that rectangle is 65cm²
Work out y
13cm
A rectangle has length of 15cm and height of x
Area of that rectangle is 645cm²
Work out x
43cm
The perimeter of a square is 28cm
Find the area of the square
49cm²
A square has a length of 8cm and a rectangle has length of 16cm and height of z
The square and rectangle have the same area
Find z
4cm
A right-angled triangle has the length of 6cm and the height of z.
The area of the triangle is 21cm²
Work out z
7cm
A triangle has a length of 35cm, a height of 7cm and the perpendicular height of x.
a) work out area of the triangle
b) If the area is 455cm², what is x?
a) 17.5x
b) 26cm
A right-angle triangle has a length of 5cm and height of 12cm and a rectangle has a length of 10cm and height of y
The area of the triangle and the rectangle are same
Work out y
3cm
A logo that is made up of 5 identical parallelograms that length of 25cm and perpendicular height of 10cm
Find the area of one parallelogram
50cm²
A parallelogram with length t+3cm and perpendicular height of 4cm
Work out t
4.5cm
A trapezium has a pair of parallel line which one of them are 9cm long and another line is 6cm long. It also has the perpendicular height of 7cm.
Work out its area
52.5cm²
A trapezium has a pair of parallel line which one of them are 2cm long and another line is 9.8cm long. It also has the perpendicular height of 3cm.
Work out its area
17.7cm²
A trapezium has a pair of parallel line which one of them are 20cm long and another line is 36cm long. It also has the perpendicular height of 7cm.
Work out its area ²
196cm²
A trapezium has a pair of parallel line which one of them are 3.6cm long and another line is 8.7cm long. It also has the perpendicular height of 6.8cm.
Work out its area
41.82cm²
²
A rectangle has length of 5xy and height of 2y
Work out the area of rectangle
