Answer:
Correct answer: 1) A = 11.13 ft² ; 2) A = 10 km² ; 3) h = 9 mi ; 4) h = 1.5 mi
Explanation:
Given:
1) a = 5.3 ft and h = 2.1 ft , A = ?
2) a = 5 km and h = 2 km , A = ?
3) a = 12 mi and A = 108 mi² , h = ?
4) a = 3 mi and A 4.5 mi² , h = ?
All figures given are parallelograms.
The formula for calculating the area of a parallelogram is:
A = a · h
1) A = 5.3 · 2.1 = 11.13 ft²
A = 11.13 ft²
2) A = 5 · 2 = 10 km²
A = 10 km²
3) h = A / a = 108 / 12 = 9 mi
h = 9 mi
4) h = A / a = 4.5 / 3 = 1.5 mi
h = 1.5 mi
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