Answer:
Area = 632mm^2
Explanation:
Area of a triangle is
1/2 × base × height
OR
= (base × height)/2
There is a tiny trick tho' because the measurement is given in cm but they asked for the answer in mm. Well, there are 10 millimeters in a centimeter.
So the base given as 8cm is 80mm. And the height given 1.58cm is 15.8mm
Area = 1/2(80)(15.8)
= 40(15.8)
= 632 mm^2