Sec 1 Math formulae

Formula for area of square

Area = l × l

Formula for area of rectangle

Area = l × b

Formula for area of triangle

Area = ½ × b × h

Formula for area of parallelogram

Area = b × h

Formula for the area of a circle

Area = π × r²

Formula for area of a trapezoid

Area = (h × (a+b)) ÷ 2

Formula for total interior angles of polygons

(n-2) × 180°

The total exterior angles of polygons are always equal…

360°

Formula for any 3D shape?

(formula for base) × h

Formula for a slope-intercept form of a straight line

y = m×x + c

Generally, what is y=mx+c?

rise/run

What does y and x represent in y=mx+c

Coordinates for any point of the line

What does m represent in y=mx+c

gradient, steepness of the line

What does c represent in y=mx+c

y-intercept; where the line intersects y when x is 0