Make a formula in tabular form for area and perimeter for 2D shape ( with units, Triangle, parallelogram, rhombus, trapezium) - Maths - Triangles

Question

Make a formula in tabular form for area and perimeter for 2D shape
( with units, Triangle, parallelogram, rhombus, trapezium)

Arnab Gupta · Accepted Answer

Dear student,

SHAPES
PERIMETER
AREA
TERMS

Triangle
(x+y+z) unit

(12×b×h) square unit
or
ss-xs-ys-z square unit
side length= x,y,z unit
b=base, h=height
s=(x+y+z)/2

Parallelogram
2(a+b) unit
(b×h) square unit
a and b are the length of two adjacent
sides
b=base,h=vertical height

Rhombus
4a unit
(12pq) square unit
a = Length of a side
p,q= length of the diagonals

Trapezium
(a+b+c+d) unit

12×a+b×h  square unit
a, b, c, d being the sides of the
trapezium
a and b are the length of parallel sides, h = height

Regards!

SHAPES	PERIMETER	AREA	TERMS
Triangle	(x+y+z) unit	$(\frac{1}{2} \times b \times h) s q u a r e u n i t$ or $\sqrt{s (s - x) (s - y) (s - z)} s q u a r e u n i t$	side length= x,y,z unit b=base, h=height s=(x+y+z)/2
Parallelogram	2(a+b) unit	$(b \times h) s q u a r e u n i t$	a and b are the length of two adjacent sides b=base,h=vertical height
Rhombus	4a unit	$(\frac{1}{2} p q) s q u a r e u n i t$	a = Length of a side p,q= length of the diagonals
Trapezium	(a+b+c+d) unit	$\frac{1}{2} \times (a + b) \times h s q u a r e u n i t$	a, b, c, d being the sides of the trapezium a and b are the length of parallel sides, h = height