Question

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Answer 1

Step-by-step explanation:

Area of triangle=

$= \frac{1}{2} \times base \times height \\ = \frac{1}{2} \times 9 \times 8 \\ = 9 \times 4 \\ = 36 {cm}^{2}$

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Answer 2

Step-by-step explanation:

since , you are able to see the altitude in this figure

so we are using area of triangle =1/2×base×height

area of triangle =1/2×9×8

hence , area of triangle =36 cm²