Summary
Summary Grade 7 Mathematics Term 2
- Course
- Institution
Grade 7 Mathematics Term 2 including geometry, proportional relationships, surface area, algebraic expressions, exponents, perimeter formula and square roots.
[Show more]
Seller
Follow
georgiacheetham
Content preview
Grade 7 Math Term 2● Geometry
- Geometry (from Ancient Greek γεωμετρία (geōmetría) 'land
measurement'; from γῆ (gê) 'earth, land' and μέτρον (métron) 'a
measure') is a branch of mathematics concerned with
properties of space such as the distance, shape, size, and
relative position of figures.
- The 8 types of geometry are Euclidean, Elliptical, Algebraic,
Discrete, Topology, Complex, Hyperbolic, and Computational
geometry. Elliptic geometry is an illustration of a geometry
in which Euclid's resemblant hypothetical doesn't hold.
- For example: A triangle is a 3 sided shape, and the sum of its 3
interior angles is 180˚ A square, rectangle or quadrilateral
are 4 sided shapes, and the sum of their 4 interior angles is 360˚
Other polygons like the pentagon, hexagon, heptagon,
octagon have 5, 6, 7, 8 sides respectively and varying angles.
● Proportional Relationships
- Proportional relationships are relationships between two
variables where their ratios are equivalent. Another way to
think about them is that, in a proportional relationship, one
variable is always a constant value times the other.
- Another term for the rate of change for proportional
relationships is the constant of proportionality. If the rate
of change is then so is the constant of proportionality. To
simplify things, we set y x = k , where represents the constant
of proportionality
- Now, we're going to consider an example of proportional
relationship in our everyday life: When we put gas in our car,
there is a relationship between the number of gallons of fuel
that we put in the tank and the amount of money we will have
to pay. In other words, the more gas we put in, the more money
we'll pay.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller georgiacheetham. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $2.85. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
64438 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now