Question

Can someone help me pls );

Answer 1

Hope it helps you,

Explanation:

As the figure can be split in to 3 geometric figure,

Rectangle , Triangle and Semi circle ,

So first find the area of these figures then add up them ,

Area of rectangle = Length * width

Length = 20m m and width = 14 mm

hence

Area of rectangle = 20*14 = 280 mm^2

Now ,

Are of Circle =
`\\ \pi *d^(2) /4`

Then Area of semi circle =
`\\ \pi *d^(2) /8`

Hence we have d= 20mm

Putt in semi circle formula we get,

Area of Semi Circle= (3.14)*400/8 = 157 mm^2

Now area of triangle = 1/2 * length*width

length =32-20 = 12 mm

width = 14 mm

putt in the formula we get ,

Area of triangle = 1/2*12*14 = 84 mm^2

Now add these 3 Areas to get total Area,

Total Area = 84+157+280 = 521 mm^2