Question

The base of an elbow-shaped prism with a base of 5cm and the other side is 12cm. If the prism height is 16cm. Calculate the base area, the circumference of the base, the surface area of ​​the prism
​

Answer 1

Explanation with steps:

= 1/2 x a x t

= 1/2 x 5 x 12

= 30 cm²

The length of the triangle side :

= √ (5² + 12²)

= √ (25 + 144)

= √ (169)

= 13 cm

Around the base :

= 5 + 12 + 13

= 30 cm

Prism surface area = (2x the base area) + (around the base x the height of the prism)

= (2 x 30) + (30 x 16)

= 60 + 480

= 540 cm²