Question

find the area of a pentagon
find area of a pentagon​

Answer 1

Step-by-step explanation:

AREA OF PENTAGON = AREA OF TRIANGLE(CDE) + AREA OF RECTANGLE (ABCE)

HERE

BASE OF TRIANGLE = EC = AB = 20 m

Height of triangle = 25-15 = 10 m

Length of rectangle = 20 m

Breadth of rectangle = 15 m

Now Area

$= \frac{1}{2} (20) \times (25 - 15) + (20 \times 15) \\ \\ = 10 \times 10 + 300 \\ \\ = 100 + 300 \\ \\ = 400 \: \: {m}^{2}$

Answer 2

Answer:

400

Step-by-step explanation:

divide that pentagon into rectangle and triangle

so rectangle area =20*15= 300

and area of triangle = 1/2*20*(25-15)

= 1/2*20*10= 200/2=100

so area of the pentagon = 300+100=400