# data[].attributes.headline
Where a and b are the lengths of the parallel sides and h is their perpendicular separation.

# data[].attributes.subject
Where a and b are the lengths of the parallel sides and h is their perpendicular separation.

# data[].attributes.headline
Perimeter, area, surface area and volume formulae.

# data[].attributes.subject
Perimeter, area, surface area and volume formulae.

# data[].attributes.headline
In any right-angled triangle where a , b and c are lengths of the sides and c is the hypotenuse

# data[].attributes.subject
In any right-angled triangle where a , b and c are lengths of the sides and c is the hypotenuse

# data[].attributes.headline
Where r is the radius and d is the diameter.

# data[].attributes.subject
Where r is the radius and d is the diameter.