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1. A triangle has a base x and and an altitude y. A second triangle has a base twice the altitude of the first triangle and and an altitude twice the base of the first triangle. What is the area of the second triangle?
- A. 2xy
- B. 2xy
- C. 2xy
- D. 2xy
Answer: Option A
Explanation:
a triangle has a base x and an altitude y
A second triangle has a base twice the altitude of the first triangle = 2x
and an altitude twice the base of the first triangle = 2y
∴Area of 2nd triangle = (1/2)(2x)(2y) = 2xy
ans: 2xy
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