How do you find the base of a triangle if you know the height and the area?

2 answers:

5 0

Well, first you have to work backward. You multiply by 2 from the area: 42*2 = 84. Now you divide 84 by 6 to get 14. That number is your missing base. To check if you are correct: 6*14 = 84/2 = 42.

Hope this helps,
Loafly

bogdanovich [222]3 years ago

4 0

If 42 is the area and the formula is bh1/2 then 42 times 2 = 6x to sold x we do 84 divided by 6 and x= 14 the height of the triangle.is 14

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A 10 ft pole has a support rope that extends from the top of the pole to the ground. The rope and the ground form a 30 degree an

mr Goodwill [35]

Answer:

The length of rope is 20.0 ft . Hence, option (1) is correct.

Step-by-step explanation:

In the figure below AB represents pole having height 10 ft and AC represents the rope that is from the top of pole to the ground. BC represent the ground distance from base of tower to the rope.

The rope and the ground form a 30 degree angle that is the angle between BC and AC is 30°.

In right angled triangle ABC with right angle at B.

Since we have to find the length of rope that is the value of side AC.

Using trigonometric ratios

$\sin C=\frac{\text{perpendicular}}{\text{hypotenuse}}$