Question

Explanation ASAP please.
​

Answer 1

Estimate = 1/2(12)(7) = 42 cm²

actual area = 42.25 cm²

Explanation:

area = 1/2bh = 1/2(11.9)(7.1) = 42.25 cm²

Answer 2

Triangle area is 1/2 bh
So 11.9 is about 12, 7.1 is about 7.
7x12 = about 84 sq, cm