Question

Find The Areas of the following polygon.​

Answer 1

Answer:

381 cm^2

Step-by-step explanation:

Area of the polygon = Area of upper trapezium + Area of rectangle + Area of lower trapezium

$= \frac{1}{2} \times 6 \times (25 + 12) + 8 \times 25 + \frac{1}{2} \times 4 \times (10 + 25) \\ = 3 \times 37 + 8 \times 25 + 2 \times 35 \\ = 111 + 200 + 70 \\ = 381 \: {cm}^{2}$

Answer 2

Answer:

381 cm^2

=21×6×(25+12)+8×25+21×4×(10+25)=3×37+8×25+2×35=111+200+70=381cm2