110.254 rounded to the nearest 10th
1 answer:
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Answer:
2.8
Step-by-step explanation:
These 2 irregular pentagons are similar, meaning that the second one is a scaled down version of the first one.
We can work out the scale factor by picking 2 corresponding sides (one from each of the pentagons) and dividing the bigger one by the smaller one.
I'm using 5 and 3.5, but any 2 matching sides work. 5÷3.5 can be solved by converting to a fraction equation (to get a neater answer). This gives ÷
, which can be solved to
or
.
This means 4÷x=. This can be rearranged to x=
÷
, which can be solved to
, which is 2.8 as a decimal.
**This question involves similar shapes, which you may wish to revise. I'm always happy to help!