Answer:
31.5 cm^2
Explanation:
The formula for the area of a triangle is 1/2 x (b x h)
in the provided question -
b = 3.5 cm
h = 18cm
thus the area of the triangle will be -
1/2 x (3.5 x 18)
= 1/2 x 63
= 31.5 cm^2
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