Question

Find the area of the following polygons.
1.
A
2
12 cm
E +
B
30 cm
15 cm
C 24 cm D​

Answer 1

Answer:

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Area of this polygon= Area of the traingle+ Area of trapezium

Area of triangle= 1/2×Base×Height

= 1/2×30×12

= 180 cm²

Area of trapezium= 1/2×( sum of parallel sides)× Height

= 1/2×(30+24)×15

= 1/2×54×15

= 405 cm²

Area of the polygon= 405+180

= 585 cm²

Answer 2

Answer:

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Area of this polygon= Area of the traingle+ Area of trapezium

Area of triangle= 1/2×Base×Height

= 1/2×30×12

= 180 cm²

Area of trapezium= 1/2×( sum of parallel sides)× Height

= 1/2×(30+24)×15

= 1/2×54×15

= 405 cm²

Area of the polygon= 405+180

= 585 cm²..

Step-by-step explanation:

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