What is the area of a triangle with base 5 units and height 8 units?

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Multiple Choice

What is the area of a triangle with base 5 units and height 8 units?

Explanation:
Area of a triangle is found by multiplying the base by the height and then dividing by 2. With base 5 units and height 8 units, 5 × 8 = 40. Half of 40 is 20, so the area is 20 square units. You can picture a rectangle with the same base and height having area 40, and a triangle is exactly half of that rectangle, so its area is 20. The other numbers don’t come from this base-times-height-halved rule, so they aren’t correct.

Area of a triangle is found by multiplying the base by the height and then dividing by 2. With base 5 units and height 8 units, 5 × 8 = 40. Half of 40 is 20, so the area is 20 square units. You can picture a rectangle with the same base and height having area 40, and a triangle is exactly half of that rectangle, so its area is 20. The other numbers don’t come from this base-times-height-halved rule, so they aren’t correct.

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