BMAT Maths Flashcards
What is the sum of interior angles of a polygon?
(N-2) x 180 / N
What is the sum of exterior angles of a polygon?
360
-For exterior angle do 360/N
What are sufficient causes for conference?
Angle side angle
Side angle side
Side side side
What is insufficient for congruence?
angle angle angle
Side side angle
What is similarity and what is confidence?
- Similarity: two forgives or objects with the same shape thought not usually same size
- Congruence: same shape and size
What is a circle theorem?
- Angle subtended at the circumference in a semi circle is at a right angle
- The tangent at any point on a circle is perpendicular to the radius at that point
What is the circumference and area of a circle?
2Pir
R^2Pi
What is the area of a sector?
Angle / 360 x pi x r^2
What is arc length?
Angle / 360 x pi x r x 2
What is LSF with ASF?
LSF^2 = ASF
What is LSF and VSF?
LSF^3 = VSF
What is the volume and SA of a right prism?
Rushes
What is the volume and SA of a pyramid?
Volume : 1/3 x area of base x perpendicular height
SA : add area of base and areas of triangular faces
What is the volume and SA of a cone?
Volume: 1/3 x pi x r^2 x h
SA: Pirh + pir^2
What is the volume and surface area of a sphere?
Volume: 4/3 x pi x r^3
SA: 4 x pi x r^2
What is the volume and SA of a cylinder?
Volume: pir^2h
SA: 2pir^2 + 2pirh
What is a position to term rule and a term to term rule?
- position to term rule: tn = 6n + 5
2. Term to term rule: tn + 1 = tn + 6
What is the difference of two squares?
(a-b)^2 = (a-b) x (a + b)
What is electrolysis of Brine at anode and cathode?
Anode: Cl- —> Cl2 + 2e-
Cathode: 2H+ + 2e- —> H2
What are half equations for processes taking place at each electrode for electroplating copper (copper sulfate)?
Anode: Cu —> Cu2+ + 2e-
Cathode: Cu2+ + 2e- —> Cu
What about electrolysis of copper sulphate?
Cathode : Cu2+ + 2e- —> Cu
Anode: 4OH- —> O2 + 2H20 + 4e-
What is the equation for fission of U235?
U235/92 + 1/0n —-> 236/92U —-> 143/56 Ba + 90/36 Kr + 1/0n + 1/0n + 1/0 n
