Question

please solve my this question
please solve the rounded question I will mark you as a brain list

Answer 1

Answer:

217.7

Step-by-step explanation:

Area Of Rectangle

area of the rect. = 12 x 25

area of the rect. = 300cm²

Area Of Right Angled Triangle  

First we need to find out all the side using pythagorean theorem

Labled triangle

A

 |\

 |  \

 |    \

 |___\

B        C

AC² = AB² + BC²

10² = 8² + BC²

100 = 64 + BC²

BC² = 100 - 64 = 36

BC² = 36

BC = 6cm

Area of Right Angled Triangle = (l * b)/2

Area of Right Angled Triangle = (8 * 6)/2

Area = 24cm²

Area Of A Equilateral Triangle

$\frac{\sqrt[2]{3} }{4} s^{2}$

So

$\frac{\sqrt[2]{3} }{4} 10^{2}$

Which equals to

43.3cm²

Area Of Right Angled Triangle

A

 |\

 |  \

 |    \

 |___\

B        C

AC² = AB² + BC²

5² = 4² + BC²

25 = 16 + BC²

BC² = 25 - 16 = 9

BC² = 9

BC = 3cm

Area of Right Angled Triangle = (l * b)/2

Area of Right Angled Triangle = (4 * 3)/2

Area = 6cm²

Area of square

x²

3² = 9cm²

Area Of Shaded Region

300 - (24 + 43.3 + 6 + 9)

300 - 82.3 = 217.7