In the following figure find the area of shaded portion

90 cm²

Step-by-step explanation:

The area of the shaded portion is the area of parallelogram ABCD minus the area of triangle EBC.

ABCD is a parallelogram with base 18 cm and height 10 cm.

A(parallelogram) = bh = (18 cm)(10 cm) = 180 cm²

EBC is a triangle with base 18 cm and height 10 cm.

A(triangle) = bh/2 = (18 cm)(10 cm)/2 = 180 cm²/2 = 90 cm²

shaded area = 180 cm² - 90 cm² = 90 cm²

the reason why your question keeps getting deleted because this is not a school related question : )

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i never tried church's