Question

If the height of the triangle in the figure is decreased to 4m, what happens to the area of the triangle ?​

Answer 1

Step-by-step explanation:

Area of the triangle ( without subtracting 4m) = 1/2 * b * h

1/2 * 11 * 7

5.5 * 7

38.5 cm square

Area of the triangle ( removing 4m ) = 1/2*b*h

1/2 * 11 * 3

5.5 * 3

= 16.5

the area is decreased by 22 cm square

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Answer 2

Answer:

height is 9 and base is 11

Area of triangle is 1/2×height ×base

area of present triangle =1/2×9×11

=49.5 sq.metre

Step-by-step explanation:

area of new triangle

=1/2×4×11

=22 sq.meter

area is affected by 49.5 - 22

=27.5 sq.meter