How to find the height of a triangle - PSAT Math
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Question
A triangle has a base of 5 cm and an area of 15 cm. What is the height of the triangle?
A triangle has a base of 5 cm and an area of 15 cm. What is the height of the triangle?
Answer
The area of a triangle is (1/2)*base*height. We know that the area = 15 cm, and the base is 5 cm, so:
15 = 1/2 * 5 * height
3 = 1/2 * height
6 = height
The area of a triangle is (1/2)*base*height. We know that the area = 15 cm, and the base is 5 cm, so:
15 = 1/2 * 5 * height
3 = 1/2 * height
6 = height
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Question
In the figure above, AB = AD = AE = BD = BC = CD = DE = 1. What is the distance from A to C?
In the figure above, AB = AD = AE = BD = BC = CD = DE = 1. What is the distance from A to C?
Answer
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Question
A triangles has sides of 5, 9, and 
. Which of the folowing CANNOT be a possible value of 
?
A triangles has sides of 5, 9, and
Answer
The sum of the lengths of the shortest sides of a triangle cannot be less than the third side.
3 + 5 = 8 < 9, so 3 can't be a value of x.
The sum of the lengths of the shortest sides of a triangle cannot be less than the third side.
3 + 5 = 8 < 9, so 3 can't be a value of x.
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