Answer:
s = 10
Step-by-step explanation:
since the triangles are similar then the ratios of corresponding sides are in proportion , that is
=
( substitute values )
=
( cross- multiply )
4s = 40 ( divide both sides by 4 )
s = 10
Answer:
Step-by-step explanation:

use a calculator fo find the value
ANSWER: 127
The shape has 5 sides so it’s inner angles add to 540°.
from this you can add up the angles shown on the diagram and subtract this from 540
the answer this gives you is 127 :)