Mathematics
woahkid
28

I need to know the answer and how to solve the question for #9 please

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(1) Answers
drangonking45

So for this you need to use the properties of a triangle. all angles within a triangle add up to 180 so on a rhomboid, given that all sides are of equal length, the top half and bottom half are essentially isosceles triangles. therefore angle 2 = angle 4 and angle 1 = angle 3 so: 180 - 106 = 74 = ang 2 + ang 4 74/2 = angle 2 = angle 4 = 37 degrees this is the angle for 1 and 3 as well because their triangle is a relflection of the lower triangle so all angles = 37 degrees for the second question: angle 1 + angle 2 + 26 = 180 but like in the previous example since those 3 angles form an isosceles triangle, angle 1 = 26 as well. therefore, 180 = 26 + 26 + angle 2 180 - 26 - 26 = angle 2 angle 2 = 128 and since the upper triangle is a reflection of the lower triangle, angle 3 = angle 2 = 128  

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