Step-by-step explanation:
<em>Thanks</em><em> don't</em><em> forget</em><em> to</em><em> follow</em><em> up</em><em>.</em><em>.</em><em>. </em>
Answer:
151.4496
Step-by-step explanation:
Take the sum of its bases, multiply the sum by the height of the trapezoid, and then divide the result by 2
Answer:
C : -6
Step-by-step explanation:
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Angle ABD=87 degrees
angle ABC+angle CBD= angle ABD
Therefore, 9x-1+6x+58=87
15x+57=87
15x=87-57
15x=30
x=30/15
x=2
Angle ABC= 9x-1
=9(2)-1
=18-1
=17 degrees