Answer:
3
Step-by-step explanation:
9×11+12×11+(2×0.5×9×12)+11×15=
=99+132+108+165=504cm²
Answer:
correct
Step-by-step explanation:
negative integers are still rational numbers if it is a whole number or complete
Answer:
broke
Step-by-step explanation:
----$$$$$$$
The length of AD in the parallelogram is 143 cm.
<h3>How to find the side of a parallelogram?</h3>
A parallelogram is a quadrilateral with opposite sides parallel to each other. The opposite angles of a parallelogram are equal. Two adjacent or consecutive angles of a parallelogram are supplementary.
Hence,
2x + 72 + 2x - 20 = 180
4x + 52 = 180
4x = 180 - 52
4x = 128
divide both sides by 4
4x / 4 = 128 / 4
x = 32
Therefore,
∠A = 2(32) + 72 = 64 + 72 = 136 degrees
z = 136°
Therefore,
AC = BC = BD = AD
AC = z + 7
AC = 136 + 7
AC = 143 cm
Hence,
AD = 143 cm
learn more on parallelogram here: brainly.com/question/10930298
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