Question

Find the area of the shaded triangle if the side of each small square is 1 cm.​

Answer 1

Answer:

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Area of rectangle=8×6=48sq.cm

Area of triangle with base 4cm and height 5cm is

= 21

×4×5=10sq.cm

Area of triangle with base 3cm and height 6cm is

= 21 ×3×6=9sq.cm

Area of triangle with base 2cm and height 8cm is

= 21 ×2×8=8sq.cm

Area of shaded triangle=Area of rectangle−Area of unshaded triangle

Area of shaded triangle=48−(10+9+8)=48−27=21sq.cm

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Answer 2

Step-by-step explanation:

The figure consist of 1cm rectangle,3 unshaded and 1 shaded triangle.

Area of rectangle=8×6=48sq.cm

Area of triangle with base 4cm and height 5cm is

=

2

1

×4×5=10sq.cm

Area of triangle with base 3cm and height 6cm is

=

2

1

×3×6=9sq.cm

Area of triangle with base 2cm and height 8cm is

=

2

1

×2×8=8sq.cm

Area of shaded triangle=Area of rectangle−Area of unshaded triangle

Area of shaded triangle=48−(10+9+8)=48−27=21sq.cm