Question

find the area of the shaded regions of the following geometrical figure.​

Answer 1

Step-by-step explanation:

given given figure is a trapezium so the area of trapezium are equal to half into sum of parallel side into height therefore the answer is

1/2×(a+b)h

1/2(46+28)20

10×74

740cm²

Answer 2

Answer:

392 cm²

Step-by-step explanation:

first we will find the area of the semicircle whose formula is ½×22/7 (pi) × r²

the radius is 28 cm as the line of 20 cm is the midpoint.

the ans will be 1232 cm².

now we will find the area of the unshaded part which is a trapezium.

the formula is ½×sum of parallel lines× the distance between them.

the answer will be 840 cm²

now to find the area of the shaded region we will subtract the area of trapezium from the total area ( area of semicircle) .

we will get the ans 392 cm² which is the final answer.

hope it helps!!