Mark is a coin collector at the first store he went to he bought 3 sets of 4 coins at the second store he bought 5 sets of 3 coi
2 answers:
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Answer:
<em>Correct option B.</em>
Step-by-step explanation:
The diagram shows a trapezoid with a base angle of 45° and the other base angle of 90°.
We have completed the diagram to draw a perpendicular line over the base of height h=4. A triangle is formed with an angle of 45°.
Recall a right triangle with angles of 45° is isosceles, thus the base and the height are h=4. Please check the diagram below.
For that triangle, we apply Pythagora's Theorem:
Thus:
The base of the trapezoid x is h + 3 = 7
Thus:
Correct option B.
You have to first substitute every variable into its spot in the equation.
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Then solve.