the triangular bases of a triangular prism have three congruent sides, each measuring 10 centimeters. the height of each of the triangular bases is approximately 8.7 centimeters. the height of the prism is 15 centimeters. what is the approximate surface area of the prism

The triangular prism is shown in the diagram below. It has 5 faces; two congruent triangular faces and three congruent triangular faces

Area of a triangle is given ×base×height
Area = 0.5×10×8.7 = 43.5

Area of rectangle = length × width
Area = 10 × 15 = 150

Surface area = 43.5+43.5+150+150+150 = 537 cm²