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IntergratedMathemtaics1 blockD

September 22. Pg. 50. (#6,7)

6. a) Measurements; ST= 4cm. TQ= 8cm. The same as ST for QR, and the same for TQ for SR. etimated perimator and area.. P=24cm A=32cm2 (squared) b) The minimum measurement you would need in order to find both the perimeter and area is three measurements because to find the area you only really need two measurements one of the base and one of the height. but to find the perimeter you need the measurement of the base height and the length of two adjacent sides of the parallelogram. measurements like TQ,TS, and an extra one (the length of two adjacent sides) TU would meet that condition.

c) A formula for area is A=bh (b*h) and for permieter there is P=2(a+b)

7. a) The measurments for the right triangle; A= 3cm B=4cm C=5cm and teh measurments for the left triangle are;LM=4cm MN=3.5cm LN=6.6 Right Triabgle: A=6cm Left triangle: A=7cm P=12cm2 (squared) P= 14.1cm2 (squared) b) When you measure a right triangle you only need to know two of the side lenghts, because with that you can use the Pythagorean Theorem to calculate the third side. so really you only need two to find out teh preimeter and area of a right triangle.

c) formulas to find teh perimeter and the area of a triangle are: A=0.5(a+b) P=a+b+c

d) to find the perimeter and the area of a non right triangle you need at least tree measurements because its not right so you need to use the dotted line to make it right to find that measurement.

e) A=3+4-- if you draw the otted line to find out the measurment of the base if it was right then you wuold also multiply by 0.5 P= L+M+N (all the sides add them up)

__**September 24.**__ Inv. 1 Pg 51. (#8)

8. a) the circumfrence and area of the circle. C=6.28cm A=12.56cm2 (squared) b) teh only measurement you need to know to find teh circumfrence and the area of a circle is the radius because with the radius you can also find the diameter and thast all you need. teh radius is the only measurment you need. c) to find the area of a circle:  to find the circumfrence of a circle: D= 2*r =2*2 = 4(diameter)

__**September 28.**__ looking back pg 70-71 do: #1 (c using any method) and #2

1. a) ???

2. ??