Hi. i was scrolling through some old notes and I'm kinda stuck with this one . Please help me.
Workings Please
Find the perimeter of the diagram.

D. 52cm

Step-by-step explanation:

The perimeter of a shape is the sum of all its sides.

Not all of the sides are labelled in the diagram. We are missing two sides which I labelled "x" and "y" in the photo below.

We assume all sides are either parallel or perpendicular to each other since they look mostly "straight".

Find the length of the side x:

This side is like the 14cm side, except it's shorter by 3cm at the top and 3cm at the bottom.

x = 14cm - 3cm - 3cm

x = 8cm

Find the length of the side y:

This side is the same length as the 7cm side already labelled at the top.

y = 7cm

Find the perimeter:

Add all of the sides together.

P = 14cm + 7cm + 7cm + 3cm + 3cm + 5cm + 5cm + 8cm

If you want, you can simplify to this equation since some numbers are repeated.

P = [ 2(7 + 3 + 5) + 14 + 8 ] cm

Either way, you get the same answer.

P = 52 cm

what is the approximate angle of acb if abc is 25cm and the length of segment bc is 15

step-by-step explanation: