Find the HCF & LCM of: 1. 30,50 2. 65,91 3. 120,63,42 4. 85,34,153 5. 72,240,360 answer with steps and verify question one and two with product of lcm and hcf

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Step-by-step explanation:

1.)

30, 50

L.C.M :

Multiples of 30 : 30, 60, 90, 120, 150, 180, 210

Multiples of 50: 50, 100, 150, 200, 250

Lowest common multiple = 150

Factors of 30 : 1, 2, 3, 5, 6, 10, 15, 30

Factors of 50 : 1, 2, 5,10, 25, and 50

H. C. F = 10

2.)

65, 91

Multiples of 65 : 65, 130, 195, 260, 325, 390, 455

Multiples of 91: 91, 182, 273, 364, 455

L.C.M = 455

H.C.F:

Factors of 65 : 1, 5, 13, 65

Factors of 91 : 1, 7, 13, 91

H.C.F = 13

all the angles opposite to the angle 150 would be 150 and all the angles that are next to 150 are 30 because they equal 180 it you add it up.

step-by-step explanation: