Sure, here are the calculations for the area of each figure:
Figure A is a rectangle with a length of 4 cm and a width of 3 cm. The area of a rectangle is calculated by multiplying the length and the width, so the area of Figure A is 4×3=12 square centimeters.
Figure B is a triangle with a base of 4 cm and a height of 3 cm. The area of a triangle is calculated by multiplying the base and the height and dividing by 2, so the area of Figure B is (4×3)/2=6 square centimeters.
Figure C is a trapezoid with a top base of 4 cm, a bottom base of 6 cm, and a height of 3 cm. The area of a trapezoid is calculated by averaging the top and bottom bases and multiplying by the height, so the area of Figure C is (4+6)/2×3=15 square centimeters.
Figure D is a circle with a radius of 2 cm. The area of a circle is calculated by multiplying the square of the radius by π, so the area of Figure D is 2
2
π=4π square centimeters.