Question

What is the length of the triangular prism shown? 25 cm

15 cm
9 cm
25 cm
12 cm the answers are A.86 B.1008 C.1350 D.1080

Answer 1

Total Surface Area = 1008 cm^2

Explanation:

2 X 1/2 X (12 X 9) (Surface area of the two triangles) (Area of triangle = 1/2 Base X Height)

+ 25 X 15 (Slanted Surface)

+ 25 X 9 (Back Rectangle)

+ 25 X 12 (Bottom Rectangle)

= 1008

Answer 2

The length is 25cm and the surface area is 1008 cm.

To calculate surface area of an object you must calculate the area of each shape land then add them all together.