Question

what is the formula for area of triangle and trapezium

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Answer 1

Answer:

area of triangle =

base × perpendicular height

area of trapezium = 1/2 (sum of parallel sides) ×height

Step-by-step explanation:

you can also find area of triangle using herons formula if no heiht is given

Answer 2

Answer:

Area of Equilateral Triangle: √3/4 a² where a is the equal side.

Area of Triangle: √s(s-a)(s-b)(s-c) where s is semi perimeter, a is first side, b is second side and c is third side.

Area of Trapezium: ½×sum of parallel sides× h