The shape below is a triangular prism. Work out the length of AB. Give your answer to 2 d.p. 7 cm 26 A D B 15 cm

Question

asked Dec 15, 2024 47.3k views

1 Answer

Rakesh Jakhar · Answer 1 · 2024-12-20T19:23:12+0000

The length of AB in the triangular prism is 6.58 cm

How to find the length

The length is sought using trigonometry

You have to know that FB = EC = 15 cm. This is the hypotenuse

Using sin trigonometry, we have

sin 26 = AB / FB

sin 26 = AB / 15

AB = 15 * sin 26

AB = 6.5756

AB = 6.58 cm (to2 decimal place)