The rectangular box has a lenth of 10 inches, a width of 8 inches, and a height of 20 inches.
2 answers:
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Answer:
Area of the trapezium ABDE = 30 cm²
Step-by-step explanation:
Area of a trapezium =
Here, and
are the parallel sides of the trapezium
h = Distance between the parallel sides
From the picture attached,
ΔCAE and ΔCBD are the similar triangles.
So by the property of similarity their sides will be proportional.
CE =
CE = 12 cm
Therefore, DE = CE - CD
DE = 12 - 8 = 4 cm
Now area of trapezium ABDE =
=
= 30 cm²
Therefore, area of the trapezium ABDE = 30 cm²
Answer:
Step-by-step explanation:
<u><em>The correct question is</em></u>
Angle a and angle b are vertical angles
Angle a =8x+6
Angle b= 4x+38
Solve for x and find the measure of angle b
we know that
<u><em>Vertical Angles</em></u> are the angles opposite each other when two lines cross. They are always congruent.
m∠a=m∠b -----> by vertical angles
substitute the given values
solve for x
<em>Find the measure of angle b</em>
substitute the value of x