Question

Hey , can you help me with this thanks !!

Answer 1

16

Explanation:

the sides may not seem to help but it dose go to the other side and try to meser it it would be 4. add 8+4+4 or 8+8=16

Answer 2

18.6cm (rounded to 3 s.f.)

Explanation:

You can actually figure out the two bases of the triangles based on the Pythagoras theorem where the slant length of a 90° triangle is
`\sqrt{a^(2) + b^(2) }` where a is one of the bases and b is the other length that is 90° perpendicular to a.

So this means:

`\sqrt{6^(2) + base^(2) }` = 8cm

6² + base² = 64cm

36 + base² = 64

base² = 64-36

= 28

base =
`√(28)`

≈ 5.2915 (5 s.f.)

So the two bases are roughly 5.2915, and the middle base is part of a rectangle, so it has the same length as the rectangle's length, which is 8cm.

Thus, x = 5.2915 + 5.2915 + 8

= 18.6cm (rounded to 3 s.f.)