Answer:
19 + 4 = 23
23 x 4 = 92
92 divided by 2 = 46
Explanation:
Formula of a trapezoid:
B1 (base 1) + B2 (base 2) x height x 1/2 (basically dividing by 2)
Area = 1/2*(19+4)*4
= 46cm²
Hope it helps you!
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