A safety sign is a triangular shape and has a base of 28 inches and a height of 20 inches. Use the triangle area formula to find the number of square inches of metal needed to make the sign.
(1 point)
The formula to find the area of a triangle is:
Area = 1/2 * base * height
Plugging in the values:
Area = 1/2 * 28 inches * 20 inches
Area = 1/2 * 560 square inches
Area = 280 square inches
Therefore, 280 square inches of metal is needed to make the sign.