3 years ago

In parallelogram ABCD, the measure of angle ABC is 130, find the measure, in degrees of angle DAB

2 answers:

7 0

If angle ABC is 130, then I think you would do this;

The angles should be Supplementary (Together they equal 180)

So, let's set up an equation with the information we have.

130+x=180.
Now just solve for X.
130+x=180
-130 -130
x=50

So DAB should be 50.

Hope I could help!

77julia77 [94]3 years ago

6 0

Angle ABC = 130
Angle ABC = Angle ADC = 130 (Opposite angles are equal)
Angle DAB = 180 - 130 = 50 (consecutive interior angles)

I HOPE IT IS HELPFUL:D

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WINSTONCH [101]

Ah so the length of the minute hand is the radius.

Given that the raduis is 14mm, the area of the watch face can be found with A= $\pi r^2$

Therefore
A= $\pi r^2$
A= $\pi 14^2$
A= $196 \pi$

The watch face has an area of $196 \pi$